diff --git a/backend/src/main/java/com/zl/mjga/config/ai/ChatModelInitializer.java b/backend/src/main/java/com/zl/mjga/config/ai/ChatModelInitializer.java
index 4c9727d..0f14e2f 100644
--- a/backend/src/main/java/com/zl/mjga/config/ai/ChatModelInitializer.java
+++ b/backend/src/main/java/com/zl/mjga/config/ai/ChatModelInitializer.java
@@ -1,5 +1,7 @@
 package com.zl.mjga.config.ai;
 
+import static dev.langchain4j.store.embedding.filter.MetadataFilterBuilder.metadataKey;
+
 import com.zl.mjga.component.PromptConfiguration;
 import com.zl.mjga.service.LlmService;
 import dev.langchain4j.community.model.zhipu.ZhipuAiStreamingChatModel;
@@ -72,6 +74,11 @@ public class ChatModelInitializer {
                 .embeddingModel(zhipuEmbeddingModel)
                 .minScore(0.75)
                 .maxResults(5)
+                .dynamicFilter(
+                    query -> {
+                      String libraryId = (String) query.metadata().chatMemoryId();
+                      return metadataKey("libraryId").isEqualTo(libraryId);
+                    })
                 .build())
         .build();
   }
diff --git a/backend/src/main/java/com/zl/mjga/controller/AiController.java b/backend/src/main/java/com/zl/mjga/controller/AiController.java
index df74e09..b97dff0 100644
--- a/backend/src/main/java/com/zl/mjga/controller/AiController.java
+++ b/backend/src/main/java/com/zl/mjga/controller/AiController.java
@@ -2,6 +2,7 @@ package com.zl.mjga.controller;
 
 import com.zl.mjga.dto.PageRequestDto;
 import com.zl.mjga.dto.PageResponseDto;
+import com.zl.mjga.dto.ai.ChatDto;
 import com.zl.mjga.dto.ai.LlmQueryDto;
 import com.zl.mjga.dto.ai.LlmVm;
 import com.zl.mjga.exception.BusinessException;
@@ -72,9 +73,9 @@ public class AiController {
   }
 
   @PostMapping(value = "/chat", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
-  public Flux<String> chat(Principal principal, @RequestBody String userMessage) {
+  public Flux<String> chat(Principal principal, @RequestBody ChatDto chatDto) {
     Sinks.Many<String> sink = Sinks.many().unicast().onBackpressureBuffer();
-    TokenStream chat = aiChatService.chatPrecedenceLlmWith(principal.getName(), userMessage);
+    TokenStream chat = aiChatService.chat(principal.getName(), chatDto);
     chat.onPartialResponse(
             text ->
                 sink.tryEmitNext(
diff --git a/backend/src/main/java/com/zl/mjga/controller/LibraryController.java b/backend/src/main/java/com/zl/mjga/controller/LibraryController.java
index 88d4da7..6ccbc9c 100644
--- a/backend/src/main/java/com/zl/mjga/controller/LibraryController.java
+++ b/backend/src/main/java/com/zl/mjga/controller/LibraryController.java
@@ -8,7 +8,6 @@ import com.zl.mjga.repository.LibraryRepository;
 import com.zl.mjga.service.RagService;
 import com.zl.mjga.service.UploadService;
 import jakarta.validation.Valid;
-
 import java.util.Comparator;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
@@ -34,16 +33,16 @@ public class LibraryController {
 
   @GetMapping("/libraries")
   public List<Library> queryLibraries() {
-    return libraryRepository.findAll().stream().sorted(
-            Comparator.comparing(Library::getId).reversed()
-    ).toList();
+    return libraryRepository.findAll().stream()
+        .sorted(Comparator.comparing(Library::getId).reversed())
+        .toList();
   }
 
   @GetMapping("/docs")
   public List<LibraryDoc> queryLibraryDocs(@RequestParam Long libraryId) {
-    return libraryDocRepository.fetchByLibId(libraryId).stream().sorted(
-            Comparator.comparing(LibraryDoc::getId).reversed()
-    ).toList();
+    return libraryDocRepository.fetchByLibId(libraryId).stream()
+        .sorted(Comparator.comparing(LibraryDoc::getId).reversed())
+        .toList();
   }
 
   @GetMapping("/segments")
diff --git a/backend/src/main/java/com/zl/mjga/dto/ai/ChatDto.java b/backend/src/main/java/com/zl/mjga/dto/ai/ChatDto.java
new file mode 100644
index 0000000..e2a0e13
--- /dev/null
+++ b/backend/src/main/java/com/zl/mjga/dto/ai/ChatDto.java
@@ -0,0 +1,7 @@
+package com.zl.mjga.dto.ai;
+
+import com.zl.mjga.model.urp.ChatMode;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+
+public record ChatDto(@NotNull ChatMode mode, Long libraryId, @NotEmpty String message) {}
diff --git a/backend/src/main/java/com/zl/mjga/model/urp/ChatMode.java b/backend/src/main/java/com/zl/mjga/model/urp/ChatMode.java
new file mode 100644
index 0000000..72184bf
--- /dev/null
+++ b/backend/src/main/java/com/zl/mjga/model/urp/ChatMode.java
@@ -0,0 +1,6 @@
+package com.zl.mjga.model.urp;
+
+public enum ChatMode {
+    NORMAL,
+    WITH_LIBRARY
+}
diff --git a/backend/src/main/java/com/zl/mjga/service/AiChatService.java b/backend/src/main/java/com/zl/mjga/service/AiChatService.java
index 9ea1a5c..d7897cd 100644
--- a/backend/src/main/java/com/zl/mjga/service/AiChatService.java
+++ b/backend/src/main/java/com/zl/mjga/service/AiChatService.java
@@ -2,6 +2,7 @@ package com.zl.mjga.service;
 
 import com.zl.mjga.config.ai.AiChatAssistant;
 import com.zl.mjga.config.ai.SystemToolAssistant;
+import com.zl.mjga.dto.ai.ChatDto;
 import com.zl.mjga.exception.BusinessException;
 import dev.langchain4j.service.TokenStream;
 import java.util.Optional;
@@ -39,8 +40,20 @@ public class AiChatService {
     };
   }
 
-  public TokenStream chatPrecedenceLlmWith(String sessionIdentifier, String userMessage) {
+  public TokenStream chat(String sessionIdentifier, ChatDto chatDto) {
+    return switch (chatDto.mode()) {
+      case NORMAL -> chatWithPrecedenceLlm(sessionIdentifier, chatDto);
+      case WITH_LIBRARY -> chatWithLibrary(chatDto.libraryId(), chatDto);
+    };
+  }
+
+  public TokenStream chatWithLibrary(Long libraryId, ChatDto chatDto) {
+    return zhiPuChatAssistant.chat(String.valueOf(libraryId), chatDto.message());
+  }
+
+  public TokenStream chatWithPrecedenceLlm(String sessionIdentifier, ChatDto chatDto) {
     LlmCodeEnum code = getPrecedenceLlmCode();
+    String userMessage = chatDto.message();
     return switch (code) {
       case ZHI_PU -> zhiPuChatAssistant.chat(sessionIdentifier, userMessage);
       case DEEP_SEEK -> deepSeekChatAssistant.chat(sessionIdentifier, userMessage);
diff --git a/backend/src/main/java/com/zl/mjga/service/UploadService.java b/backend/src/main/java/com/zl/mjga/service/UploadService.java
index 2f01f6e..7aa45f5 100644
--- a/backend/src/main/java/com/zl/mjga/service/UploadService.java
+++ b/backend/src/main/java/com/zl/mjga/service/UploadService.java
@@ -71,10 +71,6 @@ public class UploadService {
     if (size > 1024 * 1024) {
       throw new BusinessException("知识库文档大小不能超过1MB");
     }
-    String contentType = multipartFile.getContentType();
-    if (!StringUtils.startsWith(contentType, "text/")) {
-      throw new BusinessException("非法的上传文件");
-    }
     minioClient.putObject(
         PutObjectArgs.builder().bucket(minIoConfig.getDefaultBucket()).object(objectName).stream(
                 multipartFile.getInputStream(), size, -1)
diff --git a/frontend/src/api/schema/openapi.json b/frontend/src/api/schema/openapi.json
index 8d18abd..8dbaf0b 100644
--- a/frontend/src/api/schema/openapi.json
+++ b/frontend/src/api/schema/openapi.json
@@ -894,7 +894,7 @@
           "content": {
             "application/json": {
               "schema": {
-                "type": "string"
+                "$ref": "#/components/schemas/ChatDto"
               }
             }
           },
@@ -1580,7 +1580,8 @@
       "DocUpdateDto": {
         "required": [
           "enable",
-          "id"
+          "id",
+          "libId"
         ],
         "type": "object",
         "properties": {
@@ -1588,6 +1589,10 @@
             "type": "integer",
             "format": "int64"
           },
+          "libId": {
+            "type": "integer",
+            "format": "int64"
+          },
           "enable": {
             "type": "boolean"
           }
@@ -1868,6 +1873,29 @@
           }
         }
       },
+      "ChatDto": {
+        "required": [
+          "message",
+          "mode"
+        ],
+        "type": "object",
+        "properties": {
+          "mode": {
+            "type": "string",
+            "enum": [
+              "NORMAL",
+              "WITH_LIBRARY"
+            ]
+          },
+          "libraryId": {
+            "type": "integer",
+            "format": "int64"
+          },
+          "message": {
+            "type": "string"
+          }
+        }
+      },
       "PageRequestDto": {
         "type": "object",
         "properties": {
diff --git a/frontend/src/api/types/schema.d.ts b/frontend/src/api/types/schema.d.ts
index 9a825b0..13459af 100644
--- a/frontend/src/api/types/schema.d.ts
+++ b/frontend/src/api/types/schema.d.ts
@@ -783,6 +783,8 @@ export interface components {
 		DocUpdateDto: {
 			/** Format: int64 */
 			id: number;
+			/** Format: int64 */
+			libId: number;
 			enable: boolean;
 		};
 		LlmVm: {
@@ -867,6 +869,13 @@ export interface components {
 			username: string;
 			password: string;
 		};
+		ChatDto: {
+			/** @enum {string} */
+			mode: "NORMAL" | "WITH_LIBRARY";
+			/** Format: int64 */
+			libraryId?: number;
+			message: string;
+		};
 		PageRequestDto: {
 			/** Format: int64 */
 			page?: number;
@@ -1888,7 +1897,7 @@ export interface operations {
 		};
 		requestBody: {
 			content: {
-				"application/json": string;
+				"application/json": components["schemas"]["ChatDto"];
 			};
 		};
 		responses: {
diff --git a/frontend/src/components/common/Assistant.vue b/frontend/src/components/common/Assistant.vue
index 387469c..ba0a6b4 100644
--- a/frontend/src/components/common/Assistant.vue
+++ b/frontend/src/components/common/Assistant.vue
@@ -5,14 +5,18 @@
 		<div class="flex flex-col gap-y-5 flex-1 pb-2">
 			<li v-for="chatElement in messages" :key="chatElement.content"
 				:class="['flex items-start gap-2.5', chatElement.isUser ? 'flex-row-reverse' : 'flex-row']">
-				<Avatar :src="chatElement.isUser ? user.avatar : '/trump.jpg'" size="sm"
+				<Avatar :src="chatElement.isUser ? user.avatar : undefined" size="sm"
 					:alt="chatElement.isUser ? '用户头像' : 'AI头像'" />
 				<div
-					:class="['flex flex-col leading-1.5 p-4 border-gray-200 rounded-e-xl rounded-es-xl max-w-[calc(100%-40px)]', chatElement.isUser ? 'bg-blue-100' : 'bg-gray-100']">
+					:class="['flex flex-col leading-1.5 p-4 border-gray-200 max-w-[calc(100%-40px)]', chatElement.isUser ? 'bg-blue-100 rounded-tl-xl rounded-bl-xl rounded-br-xl' : 'bg-gray-100 rounded-e-xl rounded-es-xl']">
 					<div class="flex items-center space-x-2">
 						<span class="text-sm font-semibold text-gray-900 ">{{ chatElement.username }}</span>
 						<LoadingIcon :textColor="'text-gray-900'"
 							v-if="isLoading && !chatElement.isUser && chatElement.content === ''" />
+						<span v-if="!chatElement.isUser && chatElement.withLibrary"
+							class="text-xs bg-blue-100 text-blue-800 px-2 py-0.5 rounded-full">
+							{{ chatElement.libraryName }}
+						</span>
 					</div>
 					<div>
 						<div class="markdown-content markdown-body text-base font-normal py-2.5 text-gray-900 break-words"
@@ -34,14 +38,24 @@
 		</div>
 
 		<form class="sticky">
-			<button @click.prevent="clearConversation"
-				class="relative inline-flex items-center justify-center p-0.5 mb-2 me-2 
-				overflow-hidden text-sm font-medium text-gray-900 rounded-lg group bg-gradient-to-br from-purple-600 to-blue-500 group-hover:from-purple-600 group-hover:to-blue-500 hover:text-white focus:ring-4 focus:outline-none focus:ring-blue-300 ">
-				<span
-					class="relative px-3 py-2 text-xs font-medium transition-all ease-in duration-75 bg-white rounded-md group-hover:bg-transparent">
-					开启新对话
-				</span>
-			</button>
+			<div class="flex items-center justify-between gap-2 mb-2">
+				<button @click.prevent="clearConversation"
+					class="relative inline-flex items-center justify-center p-0.5 
+					overflow-hidden text-sm font-medium text-gray-900 rounded-lg group bg-gradient-to-br from-purple-600 to-blue-500 group-hover:from-purple-600 group-hover:to-blue-500 hover:text-white focus:ring-4 focus:outline-none focus:ring-blue-300 ">
+					<span
+						class="relative px-3 py-2 text-xs font-medium transition-all ease-in duration-75 bg-white rounded-md group-hover:bg-transparent">
+						开启新对话
+					</span>
+				</button>
+
+				<select v-if="commandMode === 'chat'" v-model="selectedLibraryId"
+					class="bg-white border border-gray-300 text-gray-900 text-xs rounded-lg py-2 px-2 flex-1 max-w-48">
+					<option :value="undefined">不使用知识库</option>
+					<option v-for="library in libraries" :key="library.id" :value="library.id">
+						{{ library.name }}
+					</option>
+				</select>
+			</div>
 			<div class="w-full border border-gray-200 rounded-lg bg-gray-50">
 				<div class="px-4 py-2 bg-white rounded-t-lg">
 					<label for="comment" class="sr-only"></label>
@@ -51,7 +65,7 @@
 						" required></textarea>
 				</div>
 				<div class="flex justify-between px-2 py-2 border-t border-gray-200">
-					<select id="countries" v-model="commandMode"
+					<select id="commandMode" v-model="commandMode"
 						class="bg-white border border-gray-300 text-gray-900 text-sm rounded-lg block">
 						<option selected :value="'execute'">指令模式</option>
 						<option :value="'search'">搜索模式</option>
@@ -62,7 +76,6 @@
 						{{ isLoading ? '中止' : '发送' }}
 					</TableButton>
 				</div>
-
 			</div>
 		</form>
 	</div>
@@ -144,6 +157,9 @@ import PositionDeleteModal from "@/components/modals/ConfirmationDialog.vue";
 import PositionFormDialog from "@/components/modals/PositionFormDialog.vue";
 import RoleDeleteModal from "@/components/modals/ConfirmationDialog.vue";
 import RoleFormDialog from "@/components/modals/RoleFormDialog.vue";
+import { useKnowledgeQuery } from "@/composables/knowledge/useKnowledgeQuery";
+import { UserFormDialog } from "../modals";
+import { computed } from "vue";
 
 const {
 	messages,
@@ -190,6 +206,15 @@ const actionExcStore = useActionExcStore();
 const { availableDepartments, fetchAvailableDepartments } =
 	useDepartmentQuery();
 
+// 知识库相关
+const { libraries, fetchLibraries } = useKnowledgeQuery();
+const selectedLibraryId = ref<number | null | undefined>(undefined);
+const selectedLibraryName = computed(() => {
+	return libraries.value.find(
+		(library) => library.id === selectedLibraryId.value,
+	)?.name;
+});
+
 const commandPlaceholderMap: Record<string, string> = {
 	chat: "随便聊聊",
 	search: "输入「创建用户、删除部门、创建岗位、创建角色、创建权限」试试看",
@@ -235,31 +260,6 @@ const renderMarkdown = (content: string | undefined) => {
 //   console.log('处理后HTML:', renderMarkdown(newVal[newVal.length - 1]));
 // }, { deep: true });
 
-const handleDeleteUserClick = (input: string) => {
-	currentDeleteUsername.value = input;
-	userDeleteModal.value?.show();
-};
-
-const handleDeleteDepartmentClick = (input: string) => {
-	currentDeleteDepartmentName.value = input;
-	departmentDeleteModal.value?.show();
-};
-
-const handleDeletePositionClick = (input: string) => {
-	currentDeletePositionName.value = input;
-	positionDeleteModal.value?.show();
-};
-
-const handleDeleteRoleClick = (input: string) => {
-	currentDeleteRoleName.value = input;
-	roleDeleteModal.value?.show();
-};
-
-const handleDeletePermissionClick = (input: string) => {
-	currentDeletePermissionName.value = input;
-	permissionDeleteModal.value?.show();
-};
-
 const handleUpsertUserSubmit = async (data: UserUpsertSubmitModel) => {
 	await userUpsert.upsertUser(data);
 	userUpsertModal.value?.hide();
@@ -402,7 +402,12 @@ const chatByMode = async (
 		await executeAction(message);
 		actionExcStore.notify(true);
 	} else {
-		await chat(message);
+		// 聊天模式，判断是否使用知识库
+		if (selectedLibraryId.value !== undefined) {
+			await chat(message, selectedLibraryId.value);
+		} else {
+			await chat(message);
+		}
 	}
 };
 
@@ -427,6 +432,9 @@ onUnmounted(() => {
 
 onMounted(async () => {
 	initFlowbite();
+	// 加载知识库列表
+	await fetchLibraries();
+
 	const $upsertModalElement: HTMLElement | null =
 		document.querySelector("#user-upsert-modal");
 	if ($upsertModalElement) {
diff --git a/frontend/src/components/common/CardBase.vue b/frontend/src/components/common/CardBase.vue
index 306373b..eacc03b 100644
--- a/frontend/src/components/common/CardBase.vue
+++ b/frontend/src/components/common/CardBase.vue
@@ -36,9 +36,9 @@
 
 <script setup lang="ts">
 defineProps({
-  titleClass: {
-    type: String,
-    default: ''
-  }
+	titleClass: {
+		type: String,
+		default: "",
+	},
 });
 </script>
diff --git a/frontend/src/components/common/index.ts b/frontend/src/components/common/index.ts
index 081cca7..ac23942 100644
--- a/frontend/src/components/common/index.ts
+++ b/frontend/src/components/common/index.ts
@@ -1,4 +1,4 @@
 import CardBase from "./CardBase.vue";
 import PromotionBanner from "./PromotionBanner.vue";
 
-export { CardBase, PromotionBanner }; 
+export { CardBase, PromotionBanner };
diff --git a/frontend/src/components/common/knowledge/KnowledgeDocCard.vue b/frontend/src/components/common/knowledge/KnowledgeDocCard.vue
index 2e1f2f5..c890fbb 100644
--- a/frontend/src/components/common/knowledge/KnowledgeDocCard.vue
+++ b/frontend/src/components/common/knowledge/KnowledgeDocCard.vue
@@ -10,7 +10,7 @@
     </template>
     <template #footer-left>
       <span class="text-xs text-gray-500">
-        上传时间: {{ formatDateString(doc.createTime) }}
+        {{ formatDateString(doc.createTime) }}
       </span>
     </template>
     <template #footer-actions>
@@ -20,12 +20,12 @@
 </template>
 
 <script setup lang="ts">
-import CardBase from '@/components/common/CardBase.vue';
-import { KnowledgeStatusBadge } from '@/components/common/knowledge';
+import CardBase from "@/components/common/CardBase.vue";
+import { KnowledgeStatusBadge } from "@/components/common/knowledge";
 import type { LibraryDoc } from "@/types/KnowledgeTypes";
-import { formatDateString } from '@/utils/dateUtil';
+import { formatDateString } from "@/utils/dateUtil";
 
 const props = defineProps<{
-  doc: LibraryDoc;
+	doc: LibraryDoc;
 }>();
 </script>
diff --git a/frontend/src/components/common/knowledge/KnowledgeLibraryCard.vue b/frontend/src/components/common/knowledge/KnowledgeLibraryCard.vue
index 1117242..6c5f7e0 100644
--- a/frontend/src/components/common/knowledge/KnowledgeLibraryCard.vue
+++ b/frontend/src/components/common/knowledge/KnowledgeLibraryCard.vue
@@ -21,11 +21,11 @@
 </template>
 
 <script setup lang="ts">
-import CardBase from '@/components/common/CardBase.vue';
+import CardBase from "@/components/common/CardBase.vue";
 import type { Library } from "@/types/KnowledgeTypes";
-import { formatDateString } from '@/utils/dateUtil';
+import { formatDateString } from "@/utils/dateUtil";
 
 const props = defineProps<{
-  library: Library;
+	library: Library;
 }>();
 </script>
diff --git a/frontend/src/components/common/knowledge/KnowledgeStatusBadge.vue b/frontend/src/components/common/knowledge/KnowledgeStatusBadge.vue
index 5821252..b3c5b2b 100644
--- a/frontend/src/components/common/knowledge/KnowledgeStatusBadge.vue
+++ b/frontend/src/components/common/knowledge/KnowledgeStatusBadge.vue
@@ -10,28 +10,28 @@
 import { DocStatus } from "@/types/KnowledgeTypes";
 
 const props = defineProps<{
-  status?: string;
-  enabled?: boolean;
-  type: 'status' | 'enabled';
+	status?: string;
+	enabled?: boolean;
+	type: "status" | "enabled";
 }>();
 
 const getStatusClass = () => {
-  if (props.type === 'status') {
-    return props.status === DocStatus.SUCCESS 
-      ? 'bg-green-100 text-green-800' 
-      : 'bg-yellow-100 text-yellow-800';
-  }
-  
-  return props.enabled 
-    ? 'bg-blue-100 text-blue-800' 
-    : 'bg-gray-100 text-gray-800';
+	if (props.type === "status") {
+		return props.status === DocStatus.SUCCESS
+			? "bg-green-100 text-green-800"
+			: "bg-yellow-100 text-yellow-800";
+	}
+
+	return props.enabled
+		? "bg-blue-100 text-blue-800"
+		: "bg-gray-100 text-gray-800";
 };
 
 const getStatusText = () => {
-  if (props.type === 'status') {
-    return props.status === DocStatus.SUCCESS ? '解析完成' : '解析中';
-  }
-  
-  return props.enabled ? '已启用' : '已禁用';
+	if (props.type === "status") {
+		return props.status === DocStatus.SUCCESS ? "解析完成" : "解析中";
+	}
+
+	return props.enabled ? "已启用" : "已禁用";
 };
 </script>
diff --git a/frontend/src/components/common/knowledge/SegmentCard.vue b/frontend/src/components/common/knowledge/SegmentCard.vue
index 8cb9157..7ea4350 100644
--- a/frontend/src/components/common/knowledge/SegmentCard.vue
+++ b/frontend/src/components/common/knowledge/SegmentCard.vue
@@ -27,11 +27,11 @@
 </template>
 
 <script setup lang="ts">
-import CardBase from '@/components/common/CardBase.vue';
+import CardBase from "@/components/common/CardBase.vue";
 import type { LibraryDocSegment } from "@/types/KnowledgeTypes";
 
 const props = defineProps<{
-  segment: LibraryDocSegment;
-  index: number;
+	segment: LibraryDocSegment;
+	index: number;
 }>();
 </script>
diff --git a/frontend/src/components/common/knowledge/index.ts b/frontend/src/components/common/knowledge/index.ts
index 1bfbc99..04c5839 100644
--- a/frontend/src/components/common/knowledge/index.ts
+++ b/frontend/src/components/common/knowledge/index.ts
@@ -8,4 +8,4 @@ export {
 	KnowledgeDocCard,
 	KnowledgeLibraryCard,
 	SegmentCard,
-}; 
+};
diff --git a/frontend/src/components/form/index.ts b/frontend/src/components/form/index.ts
index 87a49e3..3dbda55 100644
--- a/frontend/src/components/form/index.ts
+++ b/frontend/src/components/form/index.ts
@@ -1,7 +1,4 @@
-import FormInput from './FormInput.vue';
-import FormSelect from './FormSelect.vue';
+import FormInput from "./FormInput.vue";
+import FormSelect from "./FormSelect.vue";
 
-export {
-  FormInput,
-  FormSelect
-}; 
+export { FormInput, FormSelect };
diff --git a/frontend/src/components/modals/BaseDialog.vue b/frontend/src/components/modals/BaseDialog.vue
index a9c9dd4..24f2d51 100644
--- a/frontend/src/components/modals/BaseDialog.vue
+++ b/frontend/src/components/modals/BaseDialog.vue
@@ -29,7 +29,18 @@
 import { Modal, initFlowbite } from "flowbite";
 import { computed, onMounted } from "vue";
 
-export type ModalSize = "xs" | "sm" | "md" | "lg" | "xl" | "2xl" | "3xl" | "4xl" | "5xl" | "6xl" | "7xl";
+export type ModalSize =
+	| "xs"
+	| "sm"
+	| "md"
+	| "lg"
+	| "xl"
+	| "2xl"
+	| "3xl"
+	| "4xl"
+	| "5xl"
+	| "6xl"
+	| "7xl";
 
 const props = defineProps<{
 	/** 对话框标题 */
diff --git a/frontend/src/components/modals/index.ts b/frontend/src/components/modals/index.ts
index 4ec950a..ad9d280 100644
--- a/frontend/src/components/modals/index.ts
+++ b/frontend/src/components/modals/index.ts
@@ -20,4 +20,4 @@ export {
 	RoleFormDialog,
 	SchedulerFormDialog,
 	UserFormDialog,
-}; 
+};
diff --git a/frontend/src/components/tables/index.ts b/frontend/src/components/tables/index.ts
index d2f6cf9..71f85ca 100644
--- a/frontend/src/components/tables/index.ts
+++ b/frontend/src/components/tables/index.ts
@@ -12,4 +12,4 @@ export {
 	TableFilterForm,
 	TableFormLayout,
 	TablePagination,
-}; 
+};
diff --git a/frontend/src/components/ui/Avatar.vue b/frontend/src/components/ui/Avatar.vue
index d5b4ce6..e10e183 100644
--- a/frontend/src/components/ui/Avatar.vue
+++ b/frontend/src/components/ui/Avatar.vue
@@ -25,7 +25,7 @@ const sizeClass = computed(() => {
 		sm: "w-8 h-8",
 		md: "w-10 h-10",
 		lg: "w-12 h-12",
-		xl: "w-16 h-16"
+		xl: "w-16 h-16",
 	};
 	return sizes[props.size || "md"];
 });
diff --git a/frontend/src/components/ui/Button.vue b/frontend/src/components/ui/Button.vue
index 2509d4a..b21f933 100644
--- a/frontend/src/components/ui/Button.vue
+++ b/frontend/src/components/ui/Button.vue
@@ -28,95 +28,95 @@ import { StopIcon } from "@/components/icons";
 import { computed } from "vue";
 
 export type ButtonVariant =
-  | "primary"
-  | "secondary"
-  | "success"
-  | "danger"
-  | "warning"
-  | "info";
+	| "primary"
+	| "secondary"
+	| "success"
+	| "danger"
+	| "warning"
+	| "info";
 export type ButtonSize = "xs" | "sm" | "md" | "lg";
 export type ButtonType = "button" | "submit" | "reset";
 
 const props = defineProps<{
-  /** 按钮变体类型 */
-  variant?: ButtonVariant;
-  /** 按钮尺寸 */
-  size?: ButtonSize;
-  /** 是否禁用 */
-  disabled?: boolean;
-  /** 自定义CSS类名 */
-  className?: string;
-  /** 是否为移动端尺寸 */
-  isMobile?: boolean;
-  /** 是否处于加载状态 */
-  isLoading?: boolean;
-  /** 是否可中止 */
-  abortable?: boolean;
-  /** 按钮类型 */
-  type?: ButtonType;
-  /** 是否占满宽度 */
-  fullWidth?: boolean;
+	/** 按钮变体类型 */
+	variant?: ButtonVariant;
+	/** 按钮尺寸 */
+	size?: ButtonSize;
+	/** 是否禁用 */
+	disabled?: boolean;
+	/** 自定义CSS类名 */
+	className?: string;
+	/** 是否为移动端尺寸 */
+	isMobile?: boolean;
+	/** 是否处于加载状态 */
+	isLoading?: boolean;
+	/** 是否可中止 */
+	abortable?: boolean;
+	/** 按钮类型 */
+	type?: ButtonType;
+	/** 是否占满宽度 */
+	fullWidth?: boolean;
 }>();
 
 const emit = defineEmits<{
-  click: [event: MouseEvent];
+	click: [event: MouseEvent];
 }>();
 
 /** 按钮颜色样式映射 */
 const colorClasses = computed(() => {
-  const variants: Record<ButtonVariant, string> = {
-    primary: "text-white bg-blue-700 hover:bg-blue-800 focus:ring-blue-300",
-    secondary:
-      "text-gray-900 bg-white border border-gray-300 hover:bg-gray-100 focus:ring-gray-100",
-    success: "text-white bg-green-700 hover:bg-green-800 focus:ring-green-300",
-    danger: "text-white bg-red-700 hover:bg-red-800 focus:ring-red-300",
-    warning:
-      "text-gray-900 bg-yellow-400 hover:bg-yellow-500 focus:ring-yellow-300",
-    info: "text-white bg-cyan-700 hover:bg-cyan-800 focus:ring-cyan-300",
-  };
+	const variants: Record<ButtonVariant, string> = {
+		primary: "text-white bg-blue-700 hover:bg-blue-800 focus:ring-blue-300",
+		secondary:
+			"text-gray-900 bg-white border border-gray-300 hover:bg-gray-100 focus:ring-gray-100",
+		success: "text-white bg-green-700 hover:bg-green-800 focus:ring-green-300",
+		danger: "text-white bg-red-700 hover:bg-red-800 focus:ring-red-300",
+		warning:
+			"text-gray-900 bg-yellow-400 hover:bg-yellow-500 focus:ring-yellow-300",
+		info: "text-white bg-cyan-700 hover:bg-cyan-800 focus:ring-cyan-300",
+	};
 
-  return variants[props.variant || "primary"];
+	return variants[props.variant || "primary"];
 });
 
 /** 按钮尺寸样式映射 */
 const sizeClasses = computed(() => {
-  // 移动端尺寸
-  if (props.isMobile) {
-    const sizes: Record<ButtonSize, string> = {
-      xs: "text-xs px-2 py-1",
-      sm: "text-xs px-3 py-1.5",
-      md: "text-sm px-3 py-2",
-      lg: "text-sm px-4 py-2.5",
-    };
-    return sizes[props.size || "sm"];
-  }
+	// 移动端尺寸
+	if (props.isMobile) {
+		const sizes: Record<ButtonSize, string> = {
+			xs: "text-xs px-2 py-1",
+			sm: "text-xs px-3 py-1.5",
+			md: "text-sm px-3 py-2",
+			lg: "text-sm px-4 py-2.5",
+		};
+		return sizes[props.size || "sm"];
+	}
 
-  // PC端尺寸
-  const sizes: Record<ButtonSize, string> = {
-    xs: "text-xs px-3 py-1.5",
-    sm: "text-sm px-3 py-2",
-    md: "text-sm px-4 py-2.5",
-    lg: "text-base px-5 py-3",
-  };
+	// PC端尺寸
+	const sizes: Record<ButtonSize, string> = {
+		xs: "text-xs px-3 py-1.5",
+		sm: "text-sm px-3 py-2",
+		md: "text-sm px-4 py-2.5",
+		lg: "text-base px-5 py-3",
+	};
 
-  return sizes[props.size || "md"];
+	return sizes[props.size || "md"];
 });
 
 /** 图标尺寸样式映射 */
 const iconSizeClasses = computed(() => {
-  const sizes: Record<ButtonSize, string> = {
-    xs: "w-3.5 h-3.5",
-    sm: "w-4 h-4",
-    md: "w-4.5 h-4.5",
-    lg: "w-5 h-5",
-  };
-  return sizes[props.size || "md"];
+	const sizes: Record<ButtonSize, string> = {
+		xs: "w-3.5 h-3.5",
+		sm: "w-4 h-4",
+		md: "w-4.5 h-4.5",
+		lg: "w-5 h-5",
+	};
+	return sizes[props.size || "md"];
 });
 
 /** 处理点击事件 */
 const handleClick = (event: MouseEvent) => {
-  if (!props.disabled && !(props.isLoading && !props.abortable)) {
-    emit("click", event);
-  }
+	if (!props.disabled && !(props.isLoading && !props.abortable)) {
+		emit("click", event);
+	}
 };
 </script> 
diff --git a/frontend/src/components/ui/index.ts b/frontend/src/components/ui/index.ts
index 4bda237..e4900c2 100644
--- a/frontend/src/components/ui/index.ts
+++ b/frontend/src/components/ui/index.ts
@@ -4,4 +4,4 @@ import Button from "./Button.vue";
 import InputButton from "./InputButton.vue";
 import SortIcon from "./SortIcon.vue";
 
-export { Alert, Avatar, Button, InputButton, SortIcon }; 
+export { Alert, Avatar, Button, InputButton, SortIcon };
diff --git a/frontend/src/composables/ai/useAiChat.ts b/frontend/src/composables/ai/useAiChat.ts
index 0c55e3c..9e326d2 100644
--- a/frontend/src/composables/ai/useAiChat.ts
+++ b/frontend/src/composables/ai/useAiChat.ts
@@ -11,13 +11,19 @@ export const useAiChat = () => {
 			isUser: boolean;
 			username: string;
 			command?: string;
+			withLibrary?: boolean;
+			libraryName?: string;
 		}[]
 	>([]);
 	const isLoading = ref(false);
 
 	let currentController: AbortController | null = null;
 
-	const chat = async (message: string) => {
+	const chat = async (
+		message: string,
+		libraryId?: number | null,
+		libraryName?: string,
+	) => {
 		isLoading.value = true;
 		const authStore = useAuthStore();
 		const ctrl = new AbortController();
@@ -27,6 +33,8 @@ export const useAiChat = () => {
 			type: "chat",
 			isUser: false,
 			username: "知路智能体",
+			withLibrary: libraryId !== undefined,
+			libraryName: libraryName,
 		});
 		try {
 			const baseUrl = `${import.meta.env.VITE_BASE_URL}`;
@@ -36,7 +44,11 @@ export const useAiChat = () => {
 					Authorization: authStore.get(),
 					"Content-Type": "application/json",
 				},
-				body: message,
+				body: JSON.stringify({
+					mode: libraryId !== undefined ? "WITH_LIBRARY" : "NORMAL",
+					libraryId: libraryId,
+					message: message,
+				}),
 				signal: ctrl.signal,
 				onmessage(ev) {
 					messages.value[messages.value.length - 1].content += ev.data;
diff --git a/frontend/src/composables/common/index.ts b/frontend/src/composables/common/index.ts
index 70868d1..e70b26e 100644
--- a/frontend/src/composables/common/index.ts
+++ b/frontend/src/composables/common/index.ts
@@ -3,4 +3,4 @@ import { usePagination } from "./usePagination";
 import { useSorting } from "./useSorting";
 import { useStyleSystem } from "./useStyleSystem";
 
-export { useErrorHandling, usePagination, useSorting, useStyleSystem }; 
+export { useErrorHandling, usePagination, useSorting, useStyleSystem };
diff --git a/frontend/src/types/KnowledgeTypes.ts b/frontend/src/types/KnowledgeTypes.ts
index 7fd7116..76f1957 100644
--- a/frontend/src/types/KnowledgeTypes.ts
+++ b/frontend/src/types/KnowledgeTypes.ts
@@ -26,9 +26,9 @@ export interface DocQueryParams {
 }
 
 export interface SegmentQueryParams {
-		libraryDocId?: number;
-		docId?: number;
-	}
+	libraryDocId?: number;
+	docId?: number;
+}
 
 export enum DocStatus {
 	SUCCESS = "SUCCESS",
diff --git a/frontend/src/utils/index.ts b/frontend/src/utils/index.ts
index 6ea2412..a61aaf8 100644
--- a/frontend/src/utils/index.ts
+++ b/frontend/src/utils/index.ts
@@ -1,4 +1,4 @@
 import { getUserAvatarUrl } from "./avatarUtil";
 import { dayjs, formatDate, formatDateString } from "./dateUtil";
 
-export { getUserAvatarUrl, dayjs, formatDate, formatDateString }; 
+export { getUserAvatarUrl, dayjs, formatDate, formatDateString };
diff --git a/frontend/src/views/KnowledgeDocManagementPage.vue b/frontend/src/views/KnowledgeDocManagementPage.vue
index 478c58a..2f68ebb 100644
--- a/frontend/src/views/KnowledgeDocManagementPage.vue
+++ b/frontend/src/views/KnowledgeDocManagementPage.vue
@@ -68,7 +68,7 @@ import { useKnowledgeQuery } from "@/composables/knowledge/useKnowledgeQuery";
 import { useKnowledgeUpsert } from "@/composables/knowledge/useKnowledgeUpsert";
 import useAlertStore from "@/composables/store/useAlertStore";
 import { Routes } from "@/router/constants";
-import { formatDateString } from '@/utils/dateUtil';
+import { formatDateString } from "@/utils/dateUtil";
 
 import type { Library, LibraryDoc } from "@/types/KnowledgeTypes";
 import { DocStatus } from "@/types/KnowledgeTypes";
diff --git a/frontend/src/views/KnowledgeSegmentsPage.vue b/frontend/src/views/KnowledgeSegmentsPage.vue
index 91cf1fc..ee53bcf 100644
--- a/frontend/src/views/KnowledgeSegmentsPage.vue
+++ b/frontend/src/views/KnowledgeSegmentsPage.vue
@@ -28,9 +28,6 @@
     <!-- 空状态 -->
     <div v-else class="flex flex-col items-center justify-center py-10">
       <div class="text-gray-500 text-lg mb-4">暂无分段内容</div>
-      <Button variant="secondary" @click="navigateBack">
-        返回文档列表
-      </Button>
     </div>
   </div>
 </template>
@@ -55,7 +52,8 @@ const libraryId = Number.parseInt(route.params.libraryId as string, 10);
 const docId = Number.parseInt(route.params.docId as string, 10);
 
 // 获取文档信息和分段列表
-const { docs, segments, fetchLibraryDocs, fetchDocSegments } = useKnowledgeQuery();
+const { docs, segments, fetchLibraryDocs, fetchDocSegments } =
+	useKnowledgeQuery();
 const currentDoc = ref<LibraryDoc | undefined>();
 
 // 导航回文档列表