diff --git a/docs/31-图片编辑体验.md b/docs/31-图片编辑体验.md
index cbaab04..ea48fd0 100644
--- a/docs/31-图片编辑体验.md
+++ b/docs/31-图片编辑体验.md
@@ -48,6 +48,19 @@ Markdown 没有尺寸语法，通行写法是 HTML。方案（imageSchema.ts）
 往返实测：`<img src="b.png" alt="乙" width="300">` 解析/序列化逐字
 一致；普通图片、非 img 的 HTML 均不受影响（tests/image-size.test.ts）。
 
+**拖拽缩放**（同日用户追问后补）：NodeView 改为包装结构
+`span.img-wrap > img + span.img-resize-handle`，图片选中时右下角出现
+手柄，拖动实时预览（只改 CSS 宽度），松手才提交节点属性（px 值，
+上限为段落宽度、下限 20px）。两个坑：
+- PM 用 mouse 事件：手柄上的 mousedown/mouseup/click 要吞掉，否则
+  PM 会按点击位置捣乱；
+- `setNodeMarkup` 提交后 PM 会按 DOM 选区回读、把 NodeSelection 塌
+  成文本光标（手柄随之消失、无法连续拖）——提交事务里必须同带
+  `setSelection(NodeSelection)` 把选区设回去；
+  `updateImageAtElement`（弹窗改尺寸/链接）同理保选区。
+无头 Chrome 真实拖拽实测：240 → 拖 +80 得 width="320"、再拖 −30 得
+"290"，选区全程不丢。
+
 ## ② 图片超链接
 
 原「超链接」是文本链接：对选区套 link 标记，预填只有 `https://`，
diff --git a/src/editor/editor.ts b/src/editor/editor.ts
index 02f099c..b86bda4 100644
--- a/src/editor/editor.ts
+++ b/src/editor/editor.ts
@@ -13,6 +13,7 @@ import { indent } from '@milkdown/kit/plugin/indent'
 import { math } from '@milkdown/plugin-math'
 import { upload, uploadConfig, type UploadOptions } from '@milkdown/kit/plugin/upload'
 import { createSyntaxRevealPlugin, createCodeBlockTabPlugin, createTableTabPlugin, createFocusDimPlugin, createPlainTextPastePlugin, createImageDisplayPlugin, createImageEnterPlugin, createEmptyPlaceholderPlugin, selectionInTable } from './plugins'
+import { NodeSelection } from '@milkdown/kit/prose/state'
 import { createListItemViewPlugin, createCodeBlockViewPlugin } from './nodeViews'
 import { extendImageSchema } from './imageSchema'
 
@@ -296,6 +297,10 @@ export function updateImageAtElement(editor: Editor, el: HTMLElement, patch: Ima
           if (patch.linkHref) tr.addMark(pos, pos + 1, linkType.create({ href: patch.linkHref }))
         }
       }
+      // 同 plugins 的拖拽提交：换节点属性后保住节点选区，别被回读塌掉
+      if (view.state.selection instanceof NodeSelection && view.state.selection.from === pos) {
+        tr.setSelection(NodeSelection.create(tr.doc, pos))
+      }
       if (tr.docChanged) view.dispatch(tr)
       return true
     })
diff --git a/src/editor/plugins.ts b/src/editor/plugins.ts
index e7dc205..fdeccfd 100644
--- a/src/editor/plugins.ts
+++ b/src/editor/plugins.ts
@@ -463,10 +463,20 @@ export function createImageDisplayPlugin(resolve: (src: string) => Promise<strin
   return $prose(() => new Plugin({
     props: {
       nodeViews: {
-        image: (node) => {
+        image: (node, view, getPos) => {
+          // 包装结构：span.img-wrap（PM 的节点视图 dom）> img + 拖拽手柄。
+          // 手柄在图片被选中时显示（.ProseMirror-selectednode 落在包装上），
+          // 拖动时实时改 img 的 CSS 宽度预览，松手才把宽度提交进节点属性。
+          const wrap = document.createElement('span')
+          wrap.className = 'img-wrap'
           const img = document.createElement('img')
           img.alt = (node.attrs.alt as string) ?? ''
+          img.draggable = false
           if (node.attrs.title) img.title = node.attrs.title as string
+          const handle = document.createElement('span')
+          handle.className = 'img-resize-handle'
+          wrap.append(img, handle)
+          let currentNode = node
           const applyWidth = (w: unknown) => {
             const css = widthToCss(typeof w === 'string' ? w : null)
             if (css) img.style.width = css
@@ -486,12 +496,53 @@ export function createImageDisplayPlugin(resolve: (src: string) => Promise<strin
               .catch(() => undefined)
           }
           apply((node.attrs.src as string) ?? '')
+
+          // PM 用的是 mouse 事件：手柄上的 mousedown/mouseup/click 必须吞掉，
+          // 否则松手时 PM 会按点击位置重设选区，手柄随即消失、没法连续拖。
+          for (const type of ['mousedown', 'mouseup', 'click', 'dblclick'] as const) {
+            handle.addEventListener(type, (e) => { e.preventDefault(); e.stopPropagation() })
+          }
+          let drag: { startX: number; startW: number; lastW: number } | null = null
+          handle.addEventListener('pointerdown', (e) => {
+            e.preventDefault()
+            e.stopPropagation()
+            const w = img.getBoundingClientRect().width
+            drag = { startX: e.clientX, startW: w, lastW: w }
+            handle.setPointerCapture(e.pointerId)
+          })
+          handle.addEventListener('pointermove', (e) => {
+            if (!drag) return
+            const max = wrap.parentElement?.clientWidth || 10000
+            const w = Math.min(Math.max(20, drag.startW + (e.clientX - drag.startX)), Math.max(20, max))
+            drag.lastW = w
+            img.style.width = `${Math.round(w)}px`
+          })
+          const endDrag = () => {
+            if (!drag) return
+            const w = Math.round(drag.lastW)
+            drag = null
+            const pos = typeof getPos === 'function' ? getPos() : undefined
+            if (pos == null || String(w) === String(currentNode.attrs.width ?? '')) {
+              applyWidth(currentNode.attrs.width)
+              return
+            }
+            // setNodeMarkup 换掉节点实例后 PM 会按 DOM 选区回读、把节点选区
+            // 塌成文本光标（选区一丢手柄就消失，没法连续拖）——同一事务里把
+            // 节点选区明确设回去。
+            const tr = view.state.tr.setNodeMarkup(pos, undefined, { ...currentNode.attrs, width: String(w) })
+            tr.setSelection(NodeSelection.create(tr.doc, pos))
+            view.dispatch(tr)
+          }
+          handle.addEventListener('pointerup', endDrag)
+          handle.addEventListener('pointercancel', endDrag)
+
           return {
-            dom: img,
+            dom: wrap,
             update: (next) => {
               if (next.type.name !== 'image') return false
+              currentNode = next
               img.alt = (next.attrs.alt as string) ?? ''
-              applyWidth(next.attrs.width)
+              if (!drag) applyWidth(next.attrs.width)
               const src = (next.attrs.src as string) ?? ''
               if (src !== currentSrc) apply(src)
               return true
diff --git a/src/styles.css b/src/styles.css
index 9a2269c..fb1bdd2 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -185,6 +185,10 @@ kbd { background: var(--code-bg); border: 1px solid var(--border); border-radius
 .milkdown .ProseMirror th, .milkdown .ProseMirror td { border: 1px solid var(--border); padding: 6px 12px; }
 .milkdown .ProseMirror img { max-width: 100%; }
 .milkdown .ProseMirror img.ProseMirror-selectednode { outline: 2px solid var(--accent); outline-offset: 1px; border-radius: 2px; }
+.milkdown .ProseMirror .img-wrap { position: relative; display: inline-block; max-width: 100%; line-height: 0; }
+.milkdown .ProseMirror .img-wrap.ProseMirror-selectednode { outline: 2px solid var(--accent); outline-offset: 1px; border-radius: 2px; }
+.milkdown .ProseMirror .img-wrap .img-resize-handle { position: absolute; right: -6px; bottom: -6px; width: 12px; height: 12px; border-radius: 3px; background: var(--accent); border: 2px solid var(--bg-editor, #fff); box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3); cursor: nwse-resize; opacity: 0; pointer-events: none; z-index: 3; }
+.milkdown .ProseMirror .img-wrap.ProseMirror-selectednode .img-resize-handle { opacity: 1; pointer-events: auto; }
 .milkdown .ProseMirror a { color: var(--accent); }
 .milkdown .ProseMirror hr { border: 0; border-top: 1px solid var(--border); }
 .milkdown .ProseMirror li.task-item { list-style: none; display: flex; align-items: flex-start; gap: 2px; margin-left: -1.1em; }