diff --git a/backend/docs/swagger.json b/backend/docs/swagger.json
index a6576a7..e20e3a3 100644
--- a/backend/docs/swagger.json
+++ b/backend/docs/swagger.json
@@ -615,7 +615,7 @@
                     },
                     {
                         "type": "string",
-                        "description": "用户ID，可jj",
+                        "description": "用户ID，可选参数",
                         "name": "user_id",
                         "in": "query"
                     }
@@ -716,7 +716,7 @@
                     },
                     {
                         "type": "string",
-                        "description": "用户ID，可jj",
+                        "description": "用户ID，可选参数",
                         "name": "user_id",
                         "in": "query"
                     }
@@ -781,7 +781,7 @@
                     },
                     {
                         "type": "string",
-                        "description": "用户ID，可jj",
+                        "description": "用户ID，可选参数",
                         "name": "user_id",
                         "in": "query"
                     }
@@ -849,7 +849,7 @@
                     },
                     {
                         "type": "string",
-                        "description": "用户ID，可jj",
+                        "description": "用户ID，可选参数",
                         "name": "user_id",
                         "in": "query"
                     }
@@ -962,7 +962,7 @@
                     },
                     {
                         "type": "string",
-                        "description": "用户ID，可jj",
+                        "description": "用户ID，可选参数",
                         "name": "user_id",
                         "in": "query"
                     }
diff --git a/backend/domain/dashboard.go b/backend/domain/dashboard.go
index 20b52d5..0a19360 100644
--- a/backend/domain/dashboard.go
+++ b/backend/domain/dashboard.go
@@ -35,7 +35,7 @@ type Statistics struct {
 type StatisticsFilter struct {
 	Precision string `json:"precision" query:"precision" validate:"required,oneof=hour day" default:"day"` // 精度: "hour", "day"
 	Duration  int    `json:"duration" query:"duration" validate:"gte=24,lte=90" default:"90"`              // 持续时间 (小时或天数)`
-	UserID    string `json:"user_id,omitempty" query:"user_id"`                                            // 用户ID，可jj
+	UserID    string `json:"user_id,omitempty" query:"user_id"`                                            // 用户ID，可选参数
 }
 
 func (s StatisticsFilter) StartTime() time.Time {
diff --git a/backend/internal/dashboard/handler/v1/dashboard.go b/backend/internal/dashboard/handler/v1/dashboard.go
index ed9ad2d..6022dec 100644
--- a/backend/internal/dashboard/handler/v1/dashboard.go
+++ b/backend/internal/dashboard/handler/v1/dashboard.go
@@ -24,7 +24,7 @@ func NewDashboardHandler(
 	g.GET("/category-stat", web.BindHandler(h.CategoryStat))
 	g.GET("/time-stat", web.BindHandler(h.TimeStat))
 	g.GET("/user-stat", web.BindHandler(h.UserStat))
-	g.GET("/user-events", web.BindHandler(h.UserEvents))
+	g.GET("/user-events", web.BaseHandler(h.UserEvents))
 	g.GET("/user-code-rank", web.BindHandler(h.UserCodeRank))
 	g.GET("/user-heatmap", web.BaseHandler(h.UserHeatmap))
 
@@ -117,8 +117,12 @@ func (h *DashboardHandler) UserStat(c *web.Context, req domain.StatisticsFilter)
 //	@Param			filter	query		domain.StatisticsFilter	true	"筛选参数"
 //	@Success		200		{object}	web.Resp{data=[]domain.UserEvent}
 //	@Router			/api/v1/dashboard/user-events [get]
-func (h *DashboardHandler) UserEvents(c *web.Context, req domain.StatisticsFilter) error {
-	userEvents, err := h.usecase.UserEvents(c.Request().Context(), req)
+func (h *DashboardHandler) UserEvents(c *web.Context) error {
+	userEvents, err := h.usecase.UserEvents(c.Request().Context(), domain.StatisticsFilter{
+		Precision: "day",
+		Duration:  90,
+		UserID:    c.QueryParam("user_id"),
+	})
 	if err != nil {
 		return err
 	}
diff --git a/backend/internal/dashboard/repo/dashboard.go b/backend/internal/dashboard/repo/dashboard.go
index 8994d3a..974e096 100644
--- a/backend/internal/dashboard/repo/dashboard.go
+++ b/backend/internal/dashboard/repo/dashboard.go
@@ -219,6 +219,8 @@ func (d *DashboardRepo) UserEvents(ctx context.Context, req domain.StatisticsFil
 	}
 	rs, err := d.db.Task.Query().
 		WithUser().
+		WithTaskRecords().
+		Where(task.ModelType(consts.ModelTypeLLM)).
 		Where(task.CreatedAtGTE(req.StartTime())).
 		Where(task.HasUserWith(user.ID(id))).
 		Order(task.ByCreatedAt(sql.OrderDesc())).
@@ -228,11 +230,18 @@ func (d *DashboardRepo) UserEvents(ctx context.Context, req domain.StatisticsFil
 		return nil, err
 	}
 
-	return cvt.Iter(rs, func(_ int, v *db.Task) *domain.UserEvent {
-		return &domain.UserEvent{
-			Name:      v.Edges.User.Username,
-			CreatedAt: v.CreatedAt.Unix(),
+	return cvt.Filter(rs, func(_ int, v *db.Task) (*domain.UserEvent, bool) {
+		name := ""
+		for _, r := range v.Edges.TaskRecords {
+			if r.Role == consts.ChatRoleUser {
+				name = r.Prompt
+				break
+			}
 		}
+		return &domain.UserEvent{
+			Name:      name,
+			CreatedAt: v.CreatedAt.Unix(),
+		}, name != ""
 	}), nil
 }
 
@@ -265,7 +274,7 @@ func (d *DashboardRepo) UserStat(ctx context.Context, req domain.StatisticsFilte
 	if err := d.db.Task.Query().
 		Where(task.CreatedAtGTE(req.StartTime())).
 		Where(task.HasUserWith(user.ID(id))).
-		Where(task.WorkModeNotNil()).
+		Where(task.WorkModeNEQ("")).
 		Modify(func(s *sql.Selector) {
 			s.Select(
 				sql.As("work_mode", "category"),
@@ -280,7 +289,7 @@ func (d *DashboardRepo) UserStat(ctx context.Context, req domain.StatisticsFilte
 	if err := d.db.Task.Query().
 		Where(task.CreatedAtGTE(req.StartTime())).
 		Where(task.HasUserWith(user.ID(id))).
-		Where(task.ProgramLanguageNotNil()).
+		Where(task.ProgramLanguageNEQ("")).
 		Modify(func(s *sql.Selector) {
 			s.Select(
 				sql.As("program_language", "category"),