diff --git a/src/renderer/plugins/markdown-mind-map.ts b/src/renderer/plugins/markdown-mind-map.ts
index 14e231a3..ef3d0051 100644
--- a/src/renderer/plugins/markdown-mind-map.ts
+++ b/src/renderer/plugins/markdown-mind-map.ts
@@ -4,6 +4,7 @@ import Renderer from 'markdown-it/lib/renderer'
 import { Plugin } from '@fe/context/plugin'
 import crypto from '@fe/utils/crypto'
 import { dataURItoBlobLink, openInNewWindow } from '@fe/utils'
+import storage from '@fe/utils/storage'
 
 const layoutStorageKey = 'mind-map-layout'
 
@@ -86,7 +87,7 @@ const render = async (ele: HTMLElement, content: string) => {
   km.disable()
   try {
     await km.importData('text', code)
-    km.useTemplate(localStorage.getItem(layoutStorageKey) || 'default')
+    km.useTemplate(storage.get(layoutStorageKey, 'default'))
   } catch (error) {
     await km.importData('text', '转换错误\n    1. 请保证大纲只有一个根项目\n    2. 请保证大纲层级正确')
     km.useTemplate('structure')
@@ -102,7 +103,7 @@ const render = async (ele: HTMLElement, content: string) => {
     const index = tplList.indexOf(tpl)
     const nextIndex = index > tplList.length - 2 ? 0 : index + 1
     const layout = tplList[nextIndex]
-    localStorage.setItem(layoutStorageKey, layout)
+    storage.set(layoutStorageKey, layout)
     km.useTemplate(layout)
     km.execCommand('camera')
   }
diff --git a/src/renderer/plugins/markdown-run-code.ts b/src/renderer/plugins/markdown-run-code.ts
index 2231f0a5..0e8e16aa 100644
--- a/src/renderer/plugins/markdown-run-code.ts
+++ b/src/renderer/plugins/markdown-run-code.ts
@@ -5,6 +5,7 @@ import { Plugin } from '@fe/context/plugin'
 import { getAction } from '@fe/context/action'
 import * as api from '@fe/support/api'
 import { FLAG_DISABLE_XTERM } from '@fe/support/global-args'
+import storage from '@fe/utils/storage'
 
 const cachePrefix = 'run_code_result_'
 
@@ -31,7 +32,7 @@ const RunCode = defineComponent({
         hasResult = true
       }
 
-      localStorage[`${cachePrefix}${hash.value}`] = result.value
+      storage.set(`${cachePrefix}${hash.value}`, result.value)
     }
 
     const run = async () => {
@@ -59,7 +60,7 @@ const RunCode = defineComponent({
     })
 
     return () => {
-      const runResult = result.value || localStorage[`${cachePrefix}${hash.value}`] || ''
+      const runResult = result.value || storage.get(`${cachePrefix}${hash.value}`, '')
 
       return [
         h('div', { class: 'run-code-action', style: 'position: sticky; left: 0; border-top: dashed 1px #888; margin: 1em 0' }, [
@@ -105,9 +106,9 @@ const RunPlugin = (md: Markdown) => {
 }
 
 const clearCache = () => {
-  Object.keys(localStorage).forEach(key => {
+  Object.keys(storage.getAll()).forEach(key => {
     if (key.startsWith(cachePrefix)) {
-      localStorage.removeItem(key)
+      storage.remove(key)
     }
   })
 }
diff --git a/src/renderer/support/demo.ts b/src/renderer/support/demo.ts
index 61610327..7b74d25c 100644
--- a/src/renderer/support/demo.ts
+++ b/src/renderer/support/demo.ts
@@ -1,8 +1,9 @@
+import storage from '@fe/utils/storage'
 import { FLAG_DEMO } from './global-args'
 import { useToast } from './toast'
 
 if (FLAG_DEMO) {
-  localStorage.clear()
+  storage.clear()
 
   const xFetch = window.fetch
   const cache: {[key: string]: string} = {}
diff --git a/src/renderer/utils/storage.ts b/src/renderer/utils/storage.ts
index 5a4aae1a..c01efdd9 100644
--- a/src/renderer/utils/storage.ts
+++ b/src/renderer/utils/storage.ts
@@ -10,7 +10,22 @@ const set = function (key: string, value: any) {
   window.localStorage[key] = JSON.stringify(value)
 }
 
+const remove = function (key: string) {
+  window.localStorage.removeItem(key)
+}
+
+const getAll = function () {
+  return window.localStorage
+}
+
+const clear = function () {
+  window.localStorage.clear()
+}
+
 export default {
+  clear,
+  remove,
+  getAll,
   set,
   get
 }