diff --git a/dashboard/src2/pages/LoginSignup.vue b/dashboard/src2/pages/LoginSignup.vue
index 60c789a..0a6e52a 100644
--- a/dashboard/src2/pages/LoginSignup.vue
+++ b/dashboard/src2/pages/LoginSignup.vue
@@ -608,36 +608,39 @@ export default {
 				},
 			};
 		},
-		signupWithUsername() {
-			return {
-				url: 'jcloud.api.account.signup_with_username',
-				params: {
-					username: this.username,
-					email: this.email || null,
-					phone_number: this.phoneNumber || null,
-					password: this.signupPassword,
-					referrer: this.getReferrerIfAny(),
-					product: this.$route.query.product,
-				},
-				onSuccess(res) {
-					// 保存用户信息
-					localStorage.setItem('login_email', this.username || this.email);
-					
-					if (res && res.dashboard_route) {
-						// 使用后端提供的路由
-						window.location.href = res.dashboard_route;
-					} else {
-						// 简化URL，仅确保前缀正确
-						window.location.href = '/dashboard/welcome';
-					}
-				},
-				onError(err) {
-					toast.error(
-						getToastErrorMessage(err, '注册失败，请检查您的信息'),
-					);
-				},
-			};
-		},
+			signupWithUsername() {
+				return {
+					url: 'jcloud.api.account.signup_with_username',
+					params: {
+						username: this.username,
+						email: this.email || null,
+						phone_number: this.phoneNumber || null,
+						password: this.signupPassword,
+						referrer: this.getReferrerIfAny(),
+						product: this.$route.query.product,
+					},
+					onSuccess(res) {
+						if (res && res.success === false) {
+							toast.error(res.message || '注册失败，请检查您的信息');
+							return;
+						}
+						
+						localStorage.setItem('login_email', this.username || this.email);
+						
+						if (res && res.dashboard_route) {
+							window.location.href = res.dashboard_route;
+						} else {
+							window.location.href = '/dashboard/welcome';
+						}
+					},
+					onError(err) {
+						const errorMessage = err?.messages?.length
+							? err.messages.join('\n')
+							: (err?.message || '注册失败，请检查您的信息');
+						toast.error(errorMessage);
+					},
+				};
+			},
 	},
 	methods: {
 		resetSignupState() {
@@ -654,14 +657,10 @@ export default {
 						provider: this.socialLoginKey,
 					});
 				} else if (this.useEmail && this.otpSent) {
-					// 如果是邮箱验证码登录且已发送验证码，则通过verifyOTPAndLogin处理
-					// 这部分由专门的按钮处理，不在表单提交中处理
 					return;
 				} else if (!this.useEmail && this.email && this.password) {
-					// 密码登录
 					this.checkTwoFactorAndLogin();
 				} else if (this.useEmail && !this.otpSent) {
-					// 请求发送验证码
 					this.$resources.sendOTP.submit();
 				}
 			} else if (this.hasForgotPassword) {
diff --git a/jcloud/api/account.py b/jcloud/api/account.py
index c157b33..0e9ec02 100644
--- a/jcloud/api/account.py
+++ b/jcloud/api/account.py
@@ -73,6 +73,7 @@ def signup(email, product=None, referrer=None):
 def signup_with_username(username, password, email=None, phone_number=None, referrer=None, product=None):
 	"""
 	使用用户名注册新账户，邮箱和手机号为可选
+	返回格式: {"success": bool, "message": str, "dashboard_route": str}
 	"""
 	from jingrow.utils import validate_email_address
 	from jingrow.utils.password import update_password
@@ -83,11 +84,17 @@ def signup_with_username(username, password, email=None, phone_number=None, refe
 	try:
 		# 验证用户名
 		if not username or len(username) < 3:
-			jingrow.throw("用户名至少需要3个字符")
+			return {
+				"success": False,
+				"message": "用户名至少需要3个字符"
+			}
 			
 		# 检查用户名是否已存在
 		if jingrow.db.exists("User", {"username": username}):
-			jingrow.throw("该用户名已被使用")
+			return {
+				"success": False,
+				"message": "该用户名已被使用"
+			}
 		
 		# 如果提供了邮箱，验证邮箱格式并检查是否已存在
 		user_email = None
@@ -95,18 +102,30 @@ def signup_with_username(username, password, email=None, phone_number=None, refe
 			try:
 				validate_email_address(email, True)
 			except:
-				jingrow.throw("请输入有效的邮箱地址")
+				return {
+					"success": False,
+					"message": "请输入有效的邮箱地址"
+				}
 				
 			if jingrow.db.exists("User", {"email": email}):
-				jingrow.throw("该邮箱已被注册")
+				return {
+					"success": False,
+					"message": "该邮箱已被注册"
+				}
 			user_email = email
 		
 		# 如果提供了手机号，验证手机号格式并检查是否已存在
 		if phone_number:
 			if not re.match(r'^1[3-9]\d{9}$', phone_number):
-				jingrow.throw("请输入有效的手机号码")
+				return {
+					"success": False,
+					"message": "请输入有效的手机号码"
+				}
 			if jingrow.db.exists("User", {"mobile_no": phone_number}):
-				jingrow.throw("该手机号已被注册")
+				return {
+					"success": False,
+					"message": "该手机号已被注册"
+				}
 		
 		# 创建用户，但先不设置密码
 		user_pg = {
@@ -179,11 +198,20 @@ def signup_with_username(username, password, email=None, phone_number=None, refe
 			
 		jingrow.db.commit()
 		
-		# 返回与标准流程一致的响应
+		# 返回成功响应
 		return {
+			"success": True,
+			"message": "注册成功",
 			"dashboard_route": ""
 		}
 		
+	except Exception as e:
+		# 捕获其他异常并返回错误消息
+		jingrow.log_error("signup_with_username 错误", str(e))
+		return {
+			"success": False,
+			"message": f"注册失败: {str(e)}"
+		}
 	finally:
 		# 恢复原始用户
 		jingrow.set_user(current_user)