diff --git a/src/Work/ExternalContact/Client.php b/src/Work/ExternalContact/Client.php
index 5a77a1ea0..3cbc24ef4 100644
--- a/src/Work/ExternalContact/Client.php
+++ b/src/Work/ExternalContact/Client.php
@@ -137,6 +137,24 @@ public function tag_list(array $tag_id = [])
         return $this->httpPostJson('cgi-bin/externalcontact/get_corp_tag_list', $params);
     }
 
+    /**
+     * 添加企业客户标签.
+     *
+     * @see https://work.weixin.qq.com/api/doc/90000/90135/92117#添加企业客户标签
+     *
+     * @param array $params
+     *
+     * @return array|\EasyWeChat\Kernel\Support\Collection|object|\Psr\Http\Message\ResponseInterface|string
+     *
+     * @throws \EasyWeChat\Kernel\Exceptions\InvalidConfigException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
+
+    public function addCorpTag(array $params)
+    {
+        return $this->httpPostJson('cgi-bin/externalcontact/add_corp_tag', $params);
+    }
+
     /**
      * 编辑客户企业标签.
      *