diff --git a/pkg/common/db/mgo/msg.go b/pkg/common/db/mgo/msg.go
index 6fe24536bd..17e493d336 100644
--- a/pkg/common/db/mgo/msg.go
+++ b/pkg/common/db/mgo/msg.go
@@ -267,58 +267,80 @@ func (m *MsgMgo) MarkSingleChatMsgsAsRead(ctx context.Context, userID string, do
 }
 
 func (m *MsgMgo) SearchMessage(ctx context.Context, req *msg.SearchMessageReq) (int32, []*relation.MsgInfoModel, error) {
-	var pipe mongo.Pipeline
-	condition := bson.A{}
-	if req.SendTime != "" {
-		// Changed to keyed fields for bson.M to avoid govet errors
-		condition = append(condition, bson.M{"$eq": bson.A{bson.M{"$dateToString": bson.M{"format": "%Y-%m-%d", "date": bson.M{"$toDate": "$$item.msg.send_time"}}}, req.SendTime}})
+	where := make(bson.A, 0, 6)
+	if req.RecvID != "" {
+		where = append(where, bson.M{"msgs.msg.recv_id": req.RecvID})
+	}
+	if req.SendID != "" {
+		where = append(where, bson.M{"msgs.msg.send_id": req.SendID})
 	}
 	if req.ContentType != 0 {
-		condition = append(condition, bson.M{"$eq": bson.A{"$$item.msg.content_type", req.ContentType}})
+		where = append(where, bson.M{"msgs.msg.content_type": req.ContentType})
 	}
 	if req.SessionType != 0 {
-		condition = append(condition, bson.M{"$eq": bson.A{"$$item.msg.session_type", req.SessionType}})
+		where = append(where, bson.M{"msgs.msg.session_type": req.SessionType})
 	}
-	if req.RecvID != "" {
-		condition = append(condition, bson.M{"$regexFind": bson.M{"input": "$$item.msg.recv_id", "regex": req.RecvID}})
+	if req.SendTime != "" {
+		sendTime, err := time.Parse(time.DateOnly, req.SendTime)
+		if err != nil {
+			return 0, nil, errs.ErrArgs.WrapMsg("invalid sendTime", "req", req.SendTime, "format", time.DateOnly, "cause", err.Error())
+		}
+		where = append(where,
+			bson.M{
+				"msgs.msg.send_time": bson.M{
+					"$gte": sendTime.UnixMilli(),
+				},
+			},
+			bson.M{
+				"msgs.msg.send_time": bson.M{
+					"$lt": sendTime.Add(time.Hour * 24).UnixMilli(),
+				},
+			},
+		)
 	}
-	if req.SendID != "" {
-		condition = append(condition, bson.M{"$regexFind": bson.M{"input": "$$item.msg.send_id", "regex": req.SendID}})
+	pipeline := bson.A{
+		bson.M{
+			"$unwind": "$msgs",
+		},
 	}
-
-	or := bson.A{
-		bson.M{"doc_id": bson.M{"$regex": "^si_", "$options": "i"}},
-		bson.M{"doc_id": bson.M{"$regex": "^g_", "$options": "i"}},
-		bson.M{"doc_id": bson.M{"$regex": "^sg_", "$options": "i"}},
+	if len(where) > 0 {
+		pipeline = append(pipeline, bson.M{
+			"$match": bson.M{"$and": where},
+		})
 	}
-
-	// Use bson.D with keyed fields to specify the order explicitly
-	pipe = mongo.Pipeline{
-		{{"$match", bson.D{{Key: "$or", Value: or}}}},
-		{{"$project", bson.D{
-			{Key: "msgs", Value: bson.D{
-				{Key: "$filter", Value: bson.D{
-					{Key: "input", Value: "$msgs"},
-					{Key: "as", Value: "item"},
-					{Key: "cond", Value: bson.D{{Key: "$and", Value: condition}}},
-				}},
-			}},
-			{Key: "doc_id", Value: 1},
-		}}},
-		{{"$unwind", bson.M{"path": "$msgs"}}},
-		{{"$sort", bson.M{"msgs.msg.send_time": -1}}},
+	pipeline = append(pipeline,
+		bson.M{
+			"$project": bson.M{
+				"_id": 0,
+				"msg": "$msgs.msg",
+			},
+		},
+		bson.M{
+			"$count": "count",
+		},
+	)
+	count, err := mongoutil.Aggregate[int32](ctx, m.coll, pipeline)
+	if err != nil {
+		return 0, nil, err
 	}
-	type docModel struct {
-		DocID string                 `bson:"doc_id"`
-		Msg   *relation.MsgInfoModel `bson:"msgs"`
+	if len(count) == 0 || count[0] == 0 {
+		return 0, nil, nil
 	}
-	msgsDocs, err := mongoutil.Aggregate[*docModel](ctx, m.coll, pipe)
+	pipeline = pipeline[:len(pipeline)-1]
+	pipeline = append(pipeline,
+		bson.M{
+			"$skip": (req.Pagination.GetPageNumber() - 1) * req.Pagination.GetShowNumber(),
+		},
+		bson.M{
+			"$limit": req.Pagination.GetShowNumber(),
+		},
+	)
+	msgs, err := mongoutil.Aggregate[*relation.MsgInfoModel](ctx, m.coll, pipeline)
 	if err != nil {
 		return 0, nil, err
 	}
-	msgs := make([]*relation.MsgInfoModel, 0)
-	for _, doc := range msgsDocs {
-		msgInfo := doc.Msg
+	for i := range msgs {
+		msgInfo := msgs[i]
 		if msgInfo == nil || msgInfo.Msg == nil {
 			continue
 		}
@@ -350,17 +372,17 @@ func (m *MsgMgo) SearchMessage(ctx context.Context, req *msg.SearchMessageReq) (
 		}
 		msgs = append(msgs, msgInfo)
 	}
-	start := (req.Pagination.PageNumber - 1) * req.Pagination.ShowNumber
-	n := int32(len(msgs))
-	if start >= n {
-		return n, []*relation.MsgInfoModel{}, nil
-	}
-	if start+req.Pagination.ShowNumber < n {
-		msgs = msgs[start : start+req.Pagination.ShowNumber]
-	} else {
-		msgs = msgs[start:]
-	}
-	return n, msgs, nil
+	//start := (req.Pagination.PageNumber - 1) * req.Pagination.ShowNumber
+	//n := int32(len(msgs))
+	//if start >= n {
+	//	return n, []*relation.MsgInfoModel{}, nil
+	//}
+	//if start+req.Pagination.ShowNumber < n {
+	//	msgs = msgs[start : start+req.Pagination.ShowNumber]
+	//} else {
+	//	msgs = msgs[start:]
+	//}
+	return count[0], msgs, nil
 }
 
 func (m *MsgMgo) RangeUserSendCount(ctx context.Context, start time.Time, end time.Time, group bool, ase bool, pageNumber int32, showNumber int32) (msgCount int64, userCount int64, users []*relation.UserCount, dateCount map[string]int64, err error) {