diff --git a/internal/service/activity/activity.go b/internal/service/activity/activity.go
index 4fe151b9..f971583b 100644
--- a/internal/service/activity/activity.go
+++ b/internal/service/activity/activity.go
@@ -18,6 +18,7 @@ import (
 	usercommon "github.com/answerdev/answer/internal/service/user_common"
 	"github.com/answerdev/answer/pkg/converter"
 	"github.com/answerdev/answer/pkg/obj"
+	"github.com/answerdev/answer/pkg/uid"
 	"github.com/segmentfault/pacman/log"
 )
 
@@ -91,6 +92,10 @@ func (as *ActivityService) GetObjectTimeline(ctx context.Context, req *schema.Ge
 			item.CancelledAt = act.CancelledAt.Unix()
 		}
 
+		if item.ObjectType == constant.QuestionObjectType || item.ObjectType == constant.AnswerObjectType {
+			item.ObjectID = uid.EnShortID(act.ObjectID)
+		}
+
 		// database save activity type is number, change to activity type string is like "question.asked".
 		// so we need to cut the front part of '.'
 		_, item.ActivityType, _ = strings.Cut(config.ID2KeyMapping[act.ActivityType], ".")