diff --git a/Storage/Storage.Test/UserTest.cs b/Storage/Storage.Test/UserTest.cs
index 53c9f7b..56cfaca 100644
--- a/Storage/Storage.Test/UserTest.cs
+++ b/Storage/Storage.Test/UserTest.cs
@@ -229,5 +229,17 @@ namespace Storage.Test {
         //public async Task ResetPasswordBySMSCode() {
         //    await LCUser.ResetPasswordBySmsCode("15101006007", "732552", "112358");
         //}
+
+        [Test]
+        public async Task RequestSMSCodeForUpdatingPhoneNumber() {
+            await LCUser.Login("hello", "world");
+            await LCUser.RequestSMSCodeForUpdatingPhoneNumber("15101006007");
+        }
+
+        [Test]
+        public async Task VerifyCodeForUpdatingPhoneNumber() {
+            await LCUser.Login("hello", "world");
+            await LCUser.VerifyCodeForUpdatingPhoneNumber("15101006007", "055595");
+        }
     }
 }
diff --git a/Storage/Storage/LCUser.cs b/Storage/Storage/LCUser.cs
index b86001b..bfd21db 100644
--- a/Storage/Storage/LCUser.cs
+++ b/Storage/Storage/LCUser.cs
@@ -555,5 +555,39 @@ namespace LeanCloud.Storage {
             authData["main_account"] = option.AsMainAccount;
             authData["unionid"] = unionId;
         }
+
+        /// <summary>
+        /// 请求修改手机号验证码
+        /// </summary>
+        /// <param name="mobile"></param>
+        /// <param name="ttl"></param>
+        /// <param name="captchaToken"></param>
+        /// <returns></returns>
+        public static async Task RequestSMSCodeForUpdatingPhoneNumber(string mobile, int ttl = 360, string captchaToken = null) {
+            string path = "requestChangePhoneNumber";
+            Dictionary<string, object> data = new Dictionary<string, object> {
+                { "mobilePhoneNumber", mobile },
+                { "ttl", ttl }
+            };
+            if (!string.IsNullOrEmpty(captchaToken)) {
+                data["validate_token"] = captchaToken;
+            }
+            await LCApplication.HttpClient.Post<Dictionary<string, object>>(path, data: data);
+        }
+
+        /// <summary>
+        /// 验证修改手机号验证码
+        /// </summary>
+        /// <param name="mobile"></param>
+        /// <param name="code"></param>
+        /// <returns></returns>
+        public static async Task VerifyCodeForUpdatingPhoneNumber(string mobile, string code) {
+            string path = "changePhoneNumber";
+            Dictionary<string, object> data = new Dictionary<string, object> {
+                { "mobilePhoneNumber", mobile },
+                { "code", code }
+            };
+            await LCApplication.HttpClient.Post<Dictionary<string, object>>(path, data: data);
+        }
     }
 }