diff --git a/package.json b/package.json
index 248bb81..82abf3f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "tua-storage",
-    "version": "1.8.1",
+    "version": "1.8.2",
     "description": "🏗 A common storage for web(localStorage), for RN(AsyncStorage), for mini-program(wx) or just memory cache(Node.js)",
     "main": "dist/tua-storage.cjs.js",
     "module": "dist/tua-storage.esm.js",
diff --git a/src/storageEngines/asyncStorage.js b/src/storageEngines/asyncStorage.js
index 8d56aea..e15a2fb 100644
--- a/src/storageEngines/asyncStorage.js
+++ b/src/storageEngines/asyncStorage.js
@@ -1,6 +1,6 @@
 // @ts-check
 
-import { logger } from '../utils'
+import { logger, stringify } from '../utils'
 import { ERROR_MSGS } from '../constants'
 
 /**
@@ -28,7 +28,7 @@ export default function formatMethodsByAS () {
             .catch(logger.error)
     )
     const _getItem = bindFnToSE(getItem)
-    const _setItem = bindFnToSE(setItem)
+    const _setItem = (key, data) => bindFnToSE(setItem)(key, stringify(data))
     const _getAllKeys = bindFnToSE(getAllKeys)
     const _removeItem = bindFnToSE(removeItem)
     const _getInfo = () => _getAllKeys().then(keys => ({ keys }))
diff --git a/test/AsyncStorage.test.js b/test/AsyncStorage.test.js
index d68868f..1edd159 100644
--- a/test/AsyncStorage.test.js
+++ b/test/AsyncStorage.test.js
@@ -139,7 +139,7 @@ describe('async methods', () => {
 
         // storage
         expect(store.size).toBe(1)
-        expect(stringify(store.get(targetKey))).toBe(expectedVal)
+        expect(store.get(targetKey)).toBe(expectedVal)
     })
 
     test('remove some undefined items', async () => {
@@ -157,7 +157,7 @@ describe('async methods', () => {
 
         // storage
         expect(store.size).toBe(1)
-        expect(stringify(store.get(targetKey))).toBe(expectedVal)
+        expect(store.get(targetKey)).toBe(expectedVal)
     })
 
     test('get storage info', async () => {