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 9095661..3bf8fd3 100644
--- a/backend/src/main/java/com/zl/mjga/controller/AiController.java
+++ b/backend/src/main/java/com/zl/mjga/controller/AiController.java
@@ -133,4 +133,9 @@ public class AiController {
     }
     departmentRepository.deleteByName(name);
   }
+
+  @PostMapping("/chat/refresh")
+  void createNewConversation(Principal principal) {
+    aiChatService.evictChatMemory(principal.getName());
+  }
 }
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 dfa939c..9ea1a5c 100644
--- a/backend/src/main/java/com/zl/mjga/service/AiChatService.java
+++ b/backend/src/main/java/com/zl/mjga/service/AiChatService.java
@@ -53,4 +53,11 @@ public class AiChatService {
     AiLlmConfig aiLlmConfig = precedenceLlmBy.orElseThrow(() -> new BusinessException("没有开启的大模型"));
     return aiLlmConfig.getCode();
   }
+
+  public void evictChatMemory(String sessionIdentifier) {
+    deepSeekChatAssistant.evictChatMemory(sessionIdentifier);
+    zhiPuChatAssistant.evictChatMemory(sessionIdentifier);
+    zhiPuToolAssistant.evictChatMemory(sessionIdentifier);
+    deepSeekToolAssistant.evictChatMemory(sessionIdentifier);
+  }
 }