diff --git a/docs/uniCloud/authentication.md b/docs/uniCloud/authentication.md
index af6a655e66e9983910483c036ecf5427f0af765e..fed8705453a52c0a5c00a438d763f8d92288734f 100644
--- a/docs/uniCloud/authentication.md
+++ b/docs/uniCloud/authentication.md
@@ -2,18 +2,14 @@
 
 **腾讯云侧必须以任意登录方式登录之后才可以访问云端资源。开发者在控制台开启匿名登录之后，可以在客户端调用匿名登录来获取访问云端资源的权限**
 
-## uniClient.auth()
+## uniCloud.auth()
 
 获取登录对象
 
 **示例代码**
 
 ```js
-const uniClient = uniCloud.init({
-  spaceId: 'xxxx-yyy'
-});
-
-const auth = uniClient.auth()
+const auth = uniCloud.auth()
 ```
 
 ## auth.signInAnonymously()
@@ -23,11 +19,7 @@ const auth = uniClient.auth()
 **示例代码**
 
 ```js
-const uniClient = uniCloud.init({
-  spaceId: 'xxxx-yyy'
-});
-
-const auth = uniClient.auth()
+const auth = uniCloud.auth()
 auth.signInAnonymously()
 ```
 
@@ -194,7 +186,7 @@ auth.linkAndRetrieveDataWithTicket(ticket).then(res => {
 当登录态失效时，会触发这个事件，开发者可以在这个事件回调内，尝试重新登录 uniCloud。
 
 ```js
-uniClient.on('loginStateExpire', () => {
+uniCloud.on('loginStateExpire', () => {
   // 尝试重新登录
 });
 ```
@@ -206,7 +198,7 @@ JS SDK 会在登录态生效期间，自动刷新和维护短期访问令牌（a
 对于两种登录态并存（uniCloud、自身业务登录态）的 Web 应用，这个事件可以用于同步登录态之间的状态。
 
 ```js
-uniClient.on('refreshAccessToken', () => {
+uniCloud.on('refreshAccessToken', () => {
   // 此时 uniCloud 短期访问令牌已经刷新，可以尝试刷新自身业务的登录态
 })
 ```
diff --git a/docs/uniCloud/cf-database.md b/docs/uniCloud/cf-database.md
index 4cd4227fa82a8e0d014644bdf47bccba9075e348..e7068237f7c785edff9a194b6c0832450b62d07f 100644
--- a/docs/uniCloud/cf-database.md
+++ b/docs/uniCloud/cf-database.md
@@ -1148,10 +1148,10 @@ db.collection('user').where({
 (where参数为查询条件 参考 [查询文档](#查询文档))
 
 ```js
-  const uniClient =  uniCloud.init({
+  const uniCloud =  uniCloud.init({
       spaceId: 'YourSpaceId
   });
-  const db = uniClient.database();
+  const db = uniCloud.database();
   const dbCmd = db.command
   const collection = db.collection('collName') // collName 需填当前服务空间下集合名称
 
diff --git a/docs/uniCloud/functions.md b/docs/uniCloud/functions.md
index 9278133e21eb88817f4099f8ef514cacafe734a8..a5e2ca8f97ca36ce95ad9e85786f4780e5416729 100644
--- a/docs/uniCloud/functions.md
+++ b/docs/uniCloud/functions.md
@@ -20,14 +20,14 @@
 
 ```javascript
 // promise
-uniClient.callFunction({
+uniCloud.callFunction({
     name: 'test',
     data: { a: 1 }
   })
   .then(res => {});
 
 // callback
-uniClient.callFunction({
+uniCloud.callFunction({
 	name: 'test',
 	data: { a: 1 },
 	success(){},
diff --git a/docs/uniCloud/storage.md b/docs/uniCloud/storage.md
index 22866742ec7bd627cd5976ac5a45e655a0bf9c7b..b568c8f9cebe99dfc8e2a8b927e9a31bc11a9276 100644
--- a/docs/uniCloud/storage.md
+++ b/docs/uniCloud/storage.md
@@ -54,12 +54,12 @@ uni.chooseImage({
 			//进行上传操作
 
 			// promise
-			const result = await uniClient.uploadFile({
+			const result = await uniCloud.uploadFile({
 				filePath: filePath
 			});
 
 			// callback
-			uniClient.uploadFile({
+			uniCloud.uploadFile({
 				filePath: filePath
 				},
 				success() {},
@@ -114,13 +114,13 @@ uni.chooseImage({
 
 ```javascript
 // promise
-uniClient.getTempFileURL({
+uniCloud.getTempFileURL({
 		fileList: ['cloud://test-28farb/a.png']
 	})
 	.then(res => {});
 
 // callback
-uniClient.getTempFileURL({
+uniCloud.getTempFileURL({
 	fileList: ['cloud://test-28farb/a.png'],
 	success() {},
 	fail() {},
@@ -160,14 +160,14 @@ uniClient.getTempFileURL({
 
 ```javascript
 // promise
-uniClient
+uniCloud
   .deleteFile({
     fileList: ['cloud://jimmytest-088bef/1534576354877.jpg']
   })
   .then(res => {});
 
 // callback
-uniClient.deleteFile(
+uniCloud.deleteFile(
   {
     fileList: ['cloud://jimmytest-088bef/1534576354877.jpg'],
 	success(){},