diff --git a/app/mix/dao/mongo.go b/app/mix/dao/mongo.go
index 70748946..b6b3d8fc 100644
--- a/app/mix/dao/mongo.go
+++ b/app/mix/dao/mongo.go
@@ -1186,6 +1186,10 @@ func (m *Mongo) GetMomentListByMid(ctx *gin.Context, req *momentproto.OpListByMi
 	list := make([]*dbstruct.Moment, 0)
 	col := m.getColMoment()
 	//ct_lower_bound < ct <= ct_upper_bound
+	query := qmgo.M{
+		"mid":      util.DerefInt64(req.Mid),
+		"del_flag": 0,
+	}
 	ctClause := qmgo.M{}
 	if req.CtLowerBound != nil {
 		ctClause["$gt"] = util.DerefInt64(req.CtLowerBound)
@@ -1193,10 +1197,8 @@ func (m *Mongo) GetMomentListByMid(ctx *gin.Context, req *momentproto.OpListByMi
 	if req.CtUpperBound != nil {
 		ctClause["$lte"] = util.DerefInt64(req.CtUpperBound)
 	}
-	query := qmgo.M{
-		"mid":      util.DerefInt64(req.Mid),
-		"ct":       ctClause,
-		"del_flag": 0,
+	if len(ctClause) != 0 {
+		query["ct"] = ctClause
 	}
 	err := col.Find(ctx, query).Sort("-ct").Skip(int64(req.Offset)).Limit(int64(req.Limit)).All(&list)
 	if err == qmgo.ErrNoSuchDocuments {
@@ -1210,6 +1212,12 @@ func (m *Mongo) GetMomentListByMids(ctx *gin.Context, req *momentproto.OpListByM
 	list := make([]*dbstruct.Moment, 0)
 	col := m.getColMoment()
 	//ct_lower_bound < ct <= ct_upper_bound
+	query := qmgo.M{
+		"mid": bson.M{
+			"$in": req.Mids,
+		},
+		"del_flag": 0,
+	}
 	ctClause := qmgo.M{}
 	if req.CtLowerBound != nil {
 		ctClause["$gt"] = util.DerefInt64(req.CtLowerBound)
@@ -1217,12 +1225,8 @@ func (m *Mongo) GetMomentListByMids(ctx *gin.Context, req *momentproto.OpListByM
 	if req.CtUpperBound != nil {
 		ctClause["$lte"] = util.DerefInt64(req.CtUpperBound)
 	}
-	query := qmgo.M{
-		"mid": bson.M{
-			"$in": req.Mids,
-		},
-		"ct":       ctClause,
-		"del_flag": 0,
+	if len(ctClause) != 0 {
+		query["ct"] = ctClause
 	}
 	err := col.Find(ctx, query).Sort("-ct").Skip(int64(req.Offset)).Limit(int64(req.Limit)).All(&list)
 	if err == qmgo.ErrNoSuchDocuments {