diff --git a/honey_box/common/server/auth.js b/honey_box/common/server/auth.js
index 1cb80045..b8842b2e 100644
--- a/honey_box/common/server/auth.js
+++ b/honey_box/common/server/auth.js
@@ -88,13 +88,23 @@ export const isTokenExpired = () => {
 
 /**
  * 微信手机号快速验证登录
- * @param {String} code 微信手机号授权code（getPhoneNumber返回）
+ * @param {String} phoneCode 微信手机号授权code（getPhoneNumber返回）
  * @param {String} pid 推荐人ID
  * @returns {Promise} 登录结果
  */
-export const wxPhoneLogin = async (code, pid = '') => {
+export const wxPhoneLogin = async (phoneCode, pid = '') => {
+    // 先获取微信登录code，用于获取openid
+    const loginRes = await new Promise((resolve, reject) => {
+        uni.login({
+            provider: 'weixin',
+            success: resolve,
+            fail: reject
+        });
+    });
+    
     return await RequestManager.post('/wxPhoneLogin', {
-        code,
+        phoneCode,
+        loginCode: loginRes.code,
         pid
     });
 };
diff --git a/server/HoneyBox/src/HoneyBox.Api/Controllers/AuthController.cs b/server/HoneyBox/src/HoneyBox.Api/Controllers/AuthController.cs
index f1b48ed8..e4e9af41 100644
--- a/server/HoneyBox/src/HoneyBox.Api/Controllers/AuthController.cs
+++ b/server/HoneyBox/src/HoneyBox.Api/Controllers/AuthController.cs
@@ -115,20 +115,21 @@ public class AuthController : ControllerBase
     /// <remarks>
     /// POST /api/wxPhoneLogin
     /// 
-    /// 使用微信getPhoneNumber获取的code进行登录，返回双Token（Access Token + Refresh Token）
+    /// 使用微信getPhoneNumber获取的code进行登录，同时使用uni.login的code获取openid用于微信支付
+    /// 返回双Token（Access Token + Refresh Token）
     /// </remarks>
-    /// <param name="request">微信手机号登录请求参数，包含手机号授权code</param>
+    /// <param name="request">微信手机号登录请求参数，包含手机号授权code和登录code</param>
     /// <returns>登录成功返回LoginResponse（包含accessToken、refreshToken、expiresIn），失败返回错误信息</returns>
     [HttpPost("wxPhoneLogin")]
     [ProducesResponseType(typeof(ApiResponse<LoginResponse>), StatusCodes.Status200OK)]
     public async Task<ApiResponse<LoginResponse>> WechatPhoneLogin([FromBody] WechatPhoneLoginRequest request)
     {
-        if (request == null || string.IsNullOrWhiteSpace(request.Code))
+        if (request == null || string.IsNullOrWhiteSpace(request.PhoneCode))
         {
             return ApiResponse<LoginResponse>.Fail("手机号授权code不能为空");
         }
 
-        var result = await _authService.WechatPhoneLoginAsync(request.Code, request.Pid);
+        var result = await _authService.WechatPhoneLoginAsync(request.PhoneCode, request.LoginCode, request.Pid);
 
         if (result.Success && result.LoginResponse != null)
         {
diff --git a/server/HoneyBox/src/HoneyBox.Core/Interfaces/IAuthService.cs b/server/HoneyBox/src/HoneyBox.Core/Interfaces/IAuthService.cs
index 473c856d..ebb1447e 100644
--- a/server/HoneyBox/src/HoneyBox.Core/Interfaces/IAuthService.cs
+++ b/server/HoneyBox/src/HoneyBox.Core/Interfaces/IAuthService.cs
@@ -47,9 +47,10 @@ public interface IAuthService
     /// 微信手机号快速验证登录
     /// </summary>
     /// <param name="phoneCode">微信手机号授权code（getPhoneNumber返回）</param>
+    /// <param name="loginCode">微信登录code（uni.login返回，用于获取openid）</param>
     /// <param name="pid">推荐人ID</param>
     /// <returns>登录结果</returns>
-    Task<LoginResult> WechatPhoneLoginAsync(string phoneCode, int? pid);
+    Task<LoginResult> WechatPhoneLoginAsync(string phoneCode, string? loginCode, int? pid);
 
     /// <summary>
     /// 记录登录信息
diff --git a/server/HoneyBox/src/HoneyBox.Core/Services/AuthService.cs b/server/HoneyBox/src/HoneyBox.Core/Services/AuthService.cs
index d4aa54e6..eeff7679 100644
--- a/server/HoneyBox/src/HoneyBox.Core/Services/AuthService.cs
+++ b/server/HoneyBox/src/HoneyBox.Core/Services/AuthService.cs
@@ -386,15 +386,15 @@ public class AuthService : IAuthService
 
     /// <summary>
     /// 微信手机号快速验证登录
-    /// 使用微信getPhoneNumber获取的code直接登录
+    /// 使用微信getPhoneNumber获取的code直接登录，同时获取openid用于微信支付
     /// </summary>
-    public async Task<LoginResult> WechatPhoneLoginAsync(string phoneCode, int? pid)
+    public async Task<LoginResult> WechatPhoneLoginAsync(string phoneCode, string? loginCode, int? pid)
     {
-        _logger.LogInformation("[AuthService] 微信手机号登录开始，pid={Pid}", pid);
+        _logger.LogInformation("[AuthService] 微信手机号登录开始，pid={Pid}, hasLoginCode={HasLoginCode}", pid, !string.IsNullOrEmpty(loginCode));
 
         if (string.IsNullOrWhiteSpace(phoneCode))
         {
-            _logger.LogWarning("[AuthService] 微信手机号登录失败：code为空");
+            _logger.LogWarning("[AuthService] 微信手机号登录失败：phoneCode为空");
             return new LoginResult
             {
                 Success = false,
@@ -417,7 +417,7 @@ public class AuthService : IAuthService
                 };
             }
 
-            // 调用微信API获取手机号
+            // 1. 调用微信API获取手机号
             _logger.LogInformation("[AuthService] 开始调用微信API获取手机号...");
             var mobileResult = await _wechatService.GetMobileAsync(phoneCode);
             
@@ -434,7 +434,26 @@ public class AuthService : IAuthService
             var mobile = mobileResult.Mobile;
             _logger.LogInformation("[AuthService] 获取手机号成功: {Mobile}", MaskMobile(mobile));
 
-            // 根据手机号查找用户
+            // 2. 如果有loginCode，获取openid
+            string? openId = null;
+            string? unionId = null;
+            if (!string.IsNullOrWhiteSpace(loginCode))
+            {
+                _logger.LogInformation("[AuthService] 开始调用微信API获取openid...");
+                var wechatResult = await _wechatService.GetOpenIdAsync(loginCode);
+                if (wechatResult.Success)
+                {
+                    openId = wechatResult.OpenId;
+                    unionId = wechatResult.UnionId;
+                    _logger.LogInformation("[AuthService] 获取openid成功: {OpenId}", openId);
+                }
+                else
+                {
+                    _logger.LogWarning("[AuthService] 获取openid失败: {Error}，继续登录但无法使用微信支付", wechatResult.ErrorMessage);
+                }
+            }
+
+            // 3. 根据手机号查找用户
             var user = await _userService.GetUserByMobileAsync(mobile);
 
             if (user == null)
@@ -444,31 +463,37 @@ public class AuthService : IAuthService
                 var createDto = new CreateUserDto
                 {
                     Mobile = mobile,
+                    OpenId = openId,
+                    UnionId = unionId,
                     Nickname = $"用户{Random.Shared.Next(100000, 999999)}",
                     Headimg = GenerateDefaultAvatar(mobile),
                     Pid = pid?.ToString()
                 };
 
                 user = await _userService.CreateUserAsync(createDto);
-                
-                // 设置手机号已绑定状态
-                await _userService.UpdateUserAsync(user.Id, new UpdateUserDto { Mobile = mobile });
-                
-                _logger.LogInformation("[AuthService] 新用户创建成功: UserId={UserId}, Mobile={Mobile}", user.Id, MaskMobile(mobile));
+                _logger.LogInformation("[AuthService] 新用户创建成功: UserId={UserId}, Mobile={Mobile}, OpenId={OpenId}", 
+                    user.Id, MaskMobile(mobile), openId ?? "null");
             }
             else
             {
                 _logger.LogInformation("[AuthService] 找到已有用户: UserId={UserId}", user.Id);
+                
+                // 4. 如果用户存在但没有openid，更新openid
+                if (!string.IsNullOrWhiteSpace(openId) && string.IsNullOrWhiteSpace(user.OpenId))
+                {
+                    _logger.LogInformation("[AuthService] 更新用户openid: UserId={UserId}", user.Id);
+                    await _userService.UpdateUserAsync(user.Id, new UpdateUserDto { OpenId = openId, UnionId = unionId });
+                }
             }
 
-            // 生成双 Token
+            // 5. 生成双 Token
             _logger.LogInformation("[AuthService] 开始生成双 Token: UserId={UserId}", user.Id);
             var loginResponse = await GenerateLoginResponseAsync(user, null);
 
             // 更新UserAccount表
             await CreateOrUpdateAccountTokenAsync(user.Id, loginResponse.AccessToken);
 
-            _logger.LogInformation("[AuthService] 微信手机号登录成功: UserId={UserId}", user.Id);
+            _logger.LogInformation("[AuthService] 微信手机号登录成功: UserId={UserId}, HasOpenId={HasOpenId}", user.Id, !string.IsNullOrWhiteSpace(openId));
 
             return new LoginResult
             {
diff --git a/server/HoneyBox/src/HoneyBox.Core/Services/UserService.cs b/server/HoneyBox/src/HoneyBox.Core/Services/UserService.cs
index f1bd66cf..3b133a2f 100644
--- a/server/HoneyBox/src/HoneyBox.Core/Services/UserService.cs
+++ b/server/HoneyBox/src/HoneyBox.Core/Services/UserService.cs
@@ -145,6 +145,9 @@ public class UserService : BaseService<User, int>, IUserService
         if (!string.IsNullOrWhiteSpace(dto.Mobile))
             user.Mobile = dto.Mobile;
 
+        if (!string.IsNullOrWhiteSpace(dto.OpenId))
+            user.OpenId = dto.OpenId;
+
         if (!string.IsNullOrWhiteSpace(dto.UnionId))
             user.UnionId = dto.UnionId;
 
diff --git a/server/HoneyBox/src/HoneyBox.Model/Models/Auth/CreateUserDto.cs b/server/HoneyBox/src/HoneyBox.Model/Models/Auth/CreateUserDto.cs
index 935d9b10..1a944422 100644
--- a/server/HoneyBox/src/HoneyBox.Model/Models/Auth/CreateUserDto.cs
+++ b/server/HoneyBox/src/HoneyBox.Model/Models/Auth/CreateUserDto.cs
@@ -61,6 +61,11 @@ public class UpdateUserDto
     /// </summary>
     public string? Mobile { get; set; }
 
+    /// <summary>
+    /// 微信openid
+    /// </summary>
+    public string? OpenId { get; set; }
+
     /// <summary>
     /// 微信unionid
     /// </summary>
diff --git a/server/HoneyBox/src/HoneyBox.Model/Models/Auth/WechatPhoneLoginRequest.cs b/server/HoneyBox/src/HoneyBox.Model/Models/Auth/WechatPhoneLoginRequest.cs
index 9c42bedb..d8d2d3e9 100644
--- a/server/HoneyBox/src/HoneyBox.Model/Models/Auth/WechatPhoneLoginRequest.cs
+++ b/server/HoneyBox/src/HoneyBox.Model/Models/Auth/WechatPhoneLoginRequest.cs
@@ -10,8 +10,14 @@ public class WechatPhoneLoginRequest
     /// <summary>
     /// 微信手机号授权code（getPhoneNumber返回的code）
     /// </summary>
-    [JsonPropertyName("code")]
-    public string Code { get; set; } = string.Empty;
+    [JsonPropertyName("phoneCode")]
+    public string PhoneCode { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 微信登录code（uni.login返回的code，用于获取openid）
+    /// </summary>
+    [JsonPropertyName("loginCode")]
+    public string? LoginCode { get; set; }
 
     /// <summary>
     /// 推荐人ID（前端可能传空字符串，所以用string接收）