diff --git a/CHANGELOG.MD b/CHANGELOG.MD
index 820d567..be51786 100644
--- a/CHANGELOG.MD
+++ b/CHANGELOG.MD
@@ -1,4 +1,7 @@
 # 更新日志
+### 4.5.6 | 2022.02.09
+- 新增重复昵称检测接口 [#1469](https://github.com/Binaryify/NeteaseCloudMusicApi/issues/1469)
+
 ### 4.5.5 | 2022.02.09
 - 搜索接口支持搜索声音
 
diff --git a/README.MD b/README.MD
index df4dde1..51bf5fa 100644
--- a/README.MD
+++ b/README.MD
@@ -356,6 +356,7 @@ banner({ type:0 }).then(res=>{
 234. 最近播放-专辑
 235. 最近播放-播客
 236. 签到进度
+237. 重复昵称检测
 
 ## 更新日志
 
diff --git a/docs/README.md b/docs/README.md
index de91c18..440339d 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -252,6 +252,7 @@
 234. 最近播放-专辑
 235. 最近播放-播客
 236. 签到进度
+237. 重复昵称检测
 
 
 ## 安装
diff --git a/interface.d.ts b/interface.d.ts
index 1098381..257b926 100644
--- a/interface.d.ts
+++ b/interface.d.ts
@@ -1601,3 +1601,9 @@ export function signin_progress(
     moduleId?: string
   } & RequestBaseConfig,
 ): Promise<Response>
+
+export function nickname_check(
+  params: {
+    nickname: string
+  } & RequestBaseConfig,
+): Promise<Response>
diff --git a/module/nickname_check.js b/module/nickname_check.js
new file mode 100644
index 0000000..a51f82c
--- /dev/null
+++ b/module/nickname_check.js
@@ -0,0 +1,16 @@
+module.exports = (query, request) => {
+  const data = {
+    nickname: query.nickname,
+  }
+  return request(
+    'POST',
+    `https://music.163.com/api/nickname/duplicated`,
+    data,
+    {
+      crypto: 'weapi',
+      cookie: query.cookie,
+      proxy: query.proxy,
+      realIP: query.realIP,
+    },
+  )
+}