diff --git a/frontend/src/main.ts b/frontend/src/main.ts
index a13014f..f4d5924 100644
--- a/frontend/src/main.ts
+++ b/frontend/src/main.ts
@@ -6,6 +6,9 @@ import i18n from './i18n';
 import router from './router';
 import piniaPluginPersistedstate from 'pinia-plugin-persistedstate';
 import { registerDirectives } from './directives';
+import {EditorView} from "@codemirror/view";
+
+(EditorView as any).EDIT_CONTEXT = false;
 
 const pinia = createPinia();
 pinia.use(piniaPluginPersistedstate);
diff --git a/frontend/src/views/editor/basic/cursorPositionExtension.ts b/frontend/src/views/editor/basic/cursorPositionExtension.ts
index 4423e3b..084ad07 100644
--- a/frontend/src/views/editor/basic/cursorPositionExtension.ts
+++ b/frontend/src/views/editor/basic/cursorPositionExtension.ts
@@ -15,7 +15,7 @@ export function createCursorPositionExtension(documentId: number) {
             constructor(private view: EditorView) {
                 const {debouncedFn, flush} = createDebounce(
                     () => this.saveCursorPosition(),
-                    {delay: 400}
+                    {delay: 1000}
                 );
                 this.debouncedSave = {fn: debouncedFn, flush};
 
diff --git a/frontend/src/views/editor/extensions/codeblock/decorations.ts b/frontend/src/views/editor/extensions/codeblock/decorations.ts
index 174f2c1..7f32ef7 100644
--- a/frontend/src/views/editor/extensions/codeblock/decorations.ts
+++ b/frontend/src/views/editor/extensions/codeblock/decorations.ts
@@ -7,6 +7,14 @@ import { StateField, RangeSetBuilder, EditorState, Transaction } from "@codemirr
 import { blockState } from "./state";
 import { codeBlockEvent, USER_EVENTS } from "./annotation";
 
+/**
+ * IME 输入状态追踪
+ *
+ * 注意：CodeMirror 有 view.composing 和 view.compositionStarted 内置状态，
+ * 但 transactionFilter 中访问不到 view，所以需要用全局变量追踪
+ */
+let isComposing = false;
+
 /**
  * 块开始装饰组件
  */
@@ -223,8 +231,16 @@ const preventFirstBlockFromBeingDeleted = EditorState.changeFilter.of((tr: any)
 /**
  * 防止选择在第一个块之前
  * 使用 transactionFilter 来确保选择不会在第一个块之前
+ * 
+ * IME：在输入法组合输入期间（compositionstart ~ compositionend），
+ * 暂时禁用选区矫正，避免与 IME 选区管理冲突导致光标跳转
  */
 const preventSelectionBeforeFirstBlock = EditorState.transactionFilter.of((tr: any) => {
+  // IME 组合输入期间不矫正选区
+  if (isComposing) {
+    return tr;
+  }
+  
   if (tr.annotation(codeBlockEvent)) {
     return tr;
   }
@@ -256,6 +272,34 @@ const preventSelectionBeforeFirstBlock = EditorState.transactionFilter.of((tr: a
   return tr;
 });
 
+/**
+ * IME 输入监听器
+ * 监听 composition 事件更新 isComposing 状态，供 transactionFilter 使用
+ */
+const imeListener = ViewPlugin.fromClass(
+  class {
+    constructor(view: EditorView) {
+      view.dom.addEventListener('compositionstart', this.handleCompositionStart);
+      view.dom.addEventListener('compositionend', this.handleCompositionEnd);
+    }
+
+    handleCompositionStart = () => {
+      isComposing = true;
+    };
+
+    handleCompositionEnd = () => {
+      // 延迟重置状态，确保所有相关事务都已处理完毕
+      setTimeout(() => {
+        isComposing = false;
+      }, 0);
+    };
+
+    destroy() {
+
+    }
+  }
+);
+
 /**
  * 获取块装饰扩展 - 简化选项
  */
@@ -271,6 +315,7 @@ export function getBlockDecorationExtensions(options: {
     atomicNoteBlock,
     preventFirstBlockFromBeingDeleted,
     preventSelectionBeforeFirstBlock,
+    imeListener, // IME 状态监听器
   ];
 
   if (showBackground) {