diff --git a/services/big-data/client.go b/services/big-data/client.go
index 98882dd..e0b5fa2 100644
--- a/services/big-data/client.go
+++ b/services/big-data/client.go
@@ -36,3 +36,10 @@ func (c *Client) GetUserProfile(req *GetUserProfileRequest) (response *GetUserPr
 	err = c.DoAction(req, response)
 	return
 }
+
+// GetUserLoginLog 用户登录日志查询
+func (c *Client) GetUserLoginLog(req *GetUserLoginLogRequest) (response *GetUserLoginLogResponse, err error) {
+	response = CreateGetUserLoginLogResponse()
+	err = c.DoAction(req, response)
+	return
+}
diff --git a/services/big-data/get_user_login_log.go b/services/big-data/get_user_login_log.go
new file mode 100644
index 0000000..2a5757b
--- /dev/null
+++ b/services/big-data/get_user_login_log.go
@@ -0,0 +1,126 @@
+package big_data
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"strings"
+
+	"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/requests"
+	"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/responses"
+)
+
+// GetUserLoginLogParam 用户登录日志查询参数
+// 说明：切片为空表示不限定该条件；标量字符串为空时不参与筛选
+type GetUserLoginLogParam struct {
+	Uid           string   `json:"uid"`
+	EventTime     string   `json:"event_time"` // 形如 "2026-06"
+	GameSign      string   `json:"game_sign"`
+	ServerGroupId []string `json:"server_group_id"`
+	GameId        string   `json:"game_id"`
+	Os            []string `json:"os"`
+	OsTwo         []string `json:"os_two"`
+	Ip            string   `json:"ip"`
+	DeviceId      string   `json:"device_id"`
+	Page          int      `json:"page"`
+	PageSize      int      `json:"page_size"`
+	XDebug        string   `json:"x_debug"` // 测试环境调试头，正式调用可留空
+}
+
+// GetUserLoginLogRequest 用户登录日志查询请求
+type GetUserLoginLogRequest struct {
+	*requests.JsonRequest
+	Uid           string   `position:"Json" field:"uid"`
+	EventTime     string   `position:"Json" field:"event_time"`
+	GameSign      string   `position:"Json" field:"game_sign"`
+	ServerGroupId []string `position:"Json" field:"server_group_id"`
+	GameId        string   `position:"Json" field:"game_id"`
+	Os            []string `position:"Json" field:"os"`
+	OsTwo         []string `position:"Json" field:"os_two"`
+	Ip            string   `position:"Json" field:"ip"`
+	DeviceId      string   `position:"Json" field:"device_id"`
+	Page          int      `position:"Json" field:"page"`
+	PageSize      int      `position:"Json" field:"page_size"`
+	Authorization string   `position:"Header" field:"Authorization"`
+	XDebug        string   `position:"Header" field:"x-debug"`
+}
+
+// getUserLoginLogBody 自定义请求体序列化结构，绕开 core 的反射序列化(JsonParams)：
+//   - 切片字段统一为非 nil 空数组 []：避免 nil 被序列化成 null 触发 DMS 类型校验失败；
+//   - 标量字符串用 omitempty：空串时不出现在 JSON 中，避免被 DMS 当成真实筛选条件。
+type getUserLoginLogBody struct {
+	Uid           string   `json:"uid,omitempty"`
+	EventTime     string   `json:"event_time,omitempty"`
+	GameSign      string   `json:"game_sign,omitempty"`
+	ServerGroupId []string `json:"server_group_id"`
+	GameId        string   `json:"game_id,omitempty"`
+	Os            []string `json:"os"`
+	OsTwo         []string `json:"os_two"`
+	Ip            string   `json:"ip,omitempty"`
+	DeviceId      string   `json:"device_id,omitempty"`
+	Page          int      `json:"page"`
+	PageSize      int      `json:"page_size"`
+}
+
+// GetBodyReader 覆盖 JsonRequest 默认实现，使用自定义结构序列化 body。
+// 鉴权头(Authorization / x-debug)仍由 core 的 InitParam 按 Header 字段设置，不受影响。
+func (request *GetUserLoginLogRequest) GetBodyReader() io.Reader {
+	body := getUserLoginLogBody{
+		Uid:           request.Uid,
+		EventTime:     request.EventTime,
+		GameSign:      request.GameSign,
+		ServerGroupId: emptyStrSlice(request.ServerGroupId),
+		GameId:        request.GameId,
+		Os:            emptyStrSlice(request.Os),
+		OsTwo:         emptyStrSlice(request.OsTwo),
+		Ip:            request.Ip,
+		DeviceId:      request.DeviceId,
+		Page:          request.Page,
+		PageSize:      request.PageSize,
+	}
+	b, err := json.Marshal(body)
+	if err != nil {
+		return strings.NewReader("")
+	}
+	return bytes.NewReader(b)
+}
+
+// GetUserLoginLogResponse 用户登录日志查询响应（返回不做处理，data 原样透出）
+type GetUserLoginLogResponse struct {
+	*responses.BaseResponse
+	Code    int             `json:"code"`
+	Message string          `json:"message"`
+	Data    json.RawMessage `json:"data"`
+}
+
+// CreateGetUserLoginLogRequest 创建用户登录日志查询请求
+// token 为 GetToken 返回的 data.token，直接放入 Authorization 头
+func CreateGetUserLoginLogRequest(token string, param GetUserLoginLogParam) *GetUserLoginLogRequest {
+	req := &GetUserLoginLogRequest{
+		JsonRequest:   &requests.JsonRequest{},
+		Uid:           param.Uid,
+		EventTime:     param.EventTime,
+		GameSign:      param.GameSign,
+		ServerGroupId: param.ServerGroupId,
+		GameId:        param.GameId,
+		Os:            param.Os,
+		OsTwo:         param.OsTwo,
+		Ip:            param.Ip,
+		DeviceId:      param.DeviceId,
+		Page:          param.Page,
+		PageSize:      param.PageSize,
+		Authorization: token,
+		XDebug:        param.XDebug,
+	}
+	req.InitWithApiInfo(HOST, VERSION, "/api/internal/v1/get_user_login_log")
+	req.Method = requests.POST
+	req.Scheme = requests.HTTPS
+	return req
+}
+
+// CreateGetUserLoginLogResponse 创建用户登录日志查询响应
+func CreateGetUserLoginLogResponse() *GetUserLoginLogResponse {
+	return &GetUserLoginLogResponse{
+		BaseResponse: &responses.BaseResponse{},
+	}
+}