diff --git a/static/src/components/personalization/PersonalizationDrawer.vue b/static/src/components/personalization/PersonalizationDrawer.vue
index 98416a5..15e7242 100644
--- a/static/src/components/personalization/PersonalizationDrawer.vue
+++ b/static/src/components/personalization/PersonalizationDrawer.vue
@@ -27,7 +27,6 @@
         <div class="personalization-body settings-redesign-body" v-if="!loading">
           <form
             class="personal-form settings-redesign-form"
-            @submit.prevent="personalization.save()"
           >
             <div class="settings-redesign-layout">
               <nav class="settings-redesign-tabs" aria-label="个人空间分组切换">
@@ -1651,9 +1650,6 @@
                       ><span class="status error" v-if="error">{{ error }}</span></transition
                     >
                   </div>
-                  <button type="submit" class="settings-primary-button" :disabled="saving">
-                    {{ saving ? '保存中...' : '保存设置' }}
-                  </button>
                 </div>
               </section>
             </div>
@@ -2501,7 +2497,6 @@ const handleStackedHideBordersChange = (event: Event) => {
     key: 'stacked_hide_borders',
     value: target.checked
   });
-  personalization.save();
 };
 
 const compactMessageDisplayOptions = [
diff --git a/static/src/stores/personalization.ts b/static/src/stores/personalization.ts
index 8eaf857..41196cf 100644
--- a/static/src/stores/personalization.ts
+++ b/static/src/stores/personalization.ts
@@ -207,6 +207,9 @@ const loadExperimentState = (): ExperimentState => {
   }
 };
 
+// 防抖自动保存计时器（非响应式，避免触发不必要的重渲染）
+let autoSaveTimer: ReturnType<typeof setTimeout> | null = null;
+
 export const usePersonalizationStore = defineStore('personalization', {
   state: (): PersonalizationState => ({
     visible: false,
@@ -591,6 +594,40 @@ export const usePersonalizationStore = defineStore('personalization', {
         [payload.key]: payload.value
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
+    },
+    /** 防抖自动保存：500ms 内多次调用只执行最后一次 */
+    scheduleAutoSave() {
+      if (autoSaveTimer) {
+        clearTimeout(autoSaveTimer);
+      }
+      autoSaveTimer = setTimeout(() => {
+        autoSaveTimer = null;
+        this.autoSave();
+      }, 500);
+    },
+    /** 静默自动保存，成功不显示提示，失败显示错误 */
+    async autoSave() {
+      if (this.saving) {
+        return;
+      }
+      this.saving = true;
+      try {
+        const resp = await fetch('/api/personalization', {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(this.form)
+        });
+        const result = await resp.json();
+        if (!resp.ok || !result.success) {
+          throw new Error(result.error || '自动保存失败');
+        }
+        // 静默成功，不刷新表单（避免打断用户编辑）
+      } catch (error: any) {
+        this.error = error?.message || '自动保存失败';
+      } finally {
+        this.saving = false;
+      }
     },
     setThinkingInterval(value: number | null) {
       let target: number | null = value;
@@ -612,6 +649,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         thinking_interval: target
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     setRecentConversationsPromptLimit(value: number | null) {
       const target =
@@ -623,6 +661,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         recent_conversations_prompt_limit: target
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     toggleDefaultToolCategory(categoryId: string) {
       if (!categoryId) {
@@ -639,6 +678,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         disabled_tool_categories: Array.from(current)
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     toggleSkill(skillId: string) {
       if (!skillId) {
@@ -655,6 +695,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         enabled_skills: Array.from(current)
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     setDefaultRunMode(mode: RunMode | null) {
       let target: RunMode | null = null;
@@ -666,6 +707,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         default_run_mode: target
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     setDefaultPermissionMode(mode: PermissionMode) {
       const allowed: PermissionMode[] = ['readonly', 'approval', 'auto_approval', 'unrestricted'];
@@ -675,6 +717,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         default_permission_mode: target
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     setVersioningRestoreMode(_mode: 'overwrite') {
       const target: 'overwrite' = 'overwrite';
@@ -683,6 +726,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         versioning_restore_mode: target
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     setDefaultModel(model: string | null) {
       const modelStore = useModelStore();
@@ -693,6 +737,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         default_model: target
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     setImageCompression(mode: string) {
       const allowed = ['original', '1080p', '720p', '540p'];
@@ -702,6 +747,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         image_compression: mode
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     applyTonePreset(preset: string) {
       if (!preset) {
@@ -712,6 +758,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         tone: preset
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     updateNewConsideration(value: string) {
       this.newConsideration = value;
@@ -730,6 +777,7 @@ export const usePersonalizationStore = defineStore('personalization', {
       };
       this.newConsideration = '';
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     removeConsideration(index: number) {
       const items = [...this.form.considerations];
@@ -739,6 +787,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         considerations: items
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     considerationDragStart(index: number, event: DragEvent) {
       this.draggedConsiderationIndex = index;
@@ -769,6 +818,7 @@ export const usePersonalizationStore = defineStore('personalization', {
       }
       this.considerationDragEnd();
       this.considerationDragOver(index, event);
+      this.scheduleAutoSave();
     },
     considerationDragEnd() {
       this.draggedConsiderationIndex = null;
@@ -818,6 +868,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         blockDisplayMode: mode
       };
       this.persistExperiments();
+      this.scheduleAutoSave();
     },
     setCompactMessageDisplay(mode: CompactMessageDisplay) {
       const target: CompactMessageDisplay = mode === 'brief' ? 'brief' : 'full';
@@ -856,6 +907,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         communication_style: style
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     },
     setConversationContinuity(value: ConversationContinuity) {
       this.form = {
@@ -863,6 +915,7 @@ export const usePersonalizationStore = defineStore('personalization', {
         conversation_continuity: value
       };
       this.clearFeedback();
+      this.scheduleAutoSave();
     }
   }
 });