diff --git a/core/reader/collection_reader.go b/core/reader/collection_reader.go
index c397330..51ebab8 100644
--- a/core/reader/collection_reader.go
+++ b/core/reader/collection_reader.go
@@ -192,24 +192,31 @@ func (reader *CollectionReader) StartRead(ctx context.Context) {
 			return
 		}
 
-		recordCreateCollectionTime := make(map[string]*pb.CollectionInfo)
+		recordCreateCollectionTime := make(map[int64]map[string]*pb.CollectionInfo)
 		repeatedCollectionID := make(map[int64]struct{})
-		repeatedCollectionName := make(map[string]struct{})
+		repeatedCollectionName := make(map[int64][]string)
 		for _, info := range existedCollectionInfos {
-			// TODO should consider the same collection name in different db
 			collectionName := info.Schema.GetName()
 			createTime := info.CreateTime
-			lastCollectionInfo, recordOK := recordCreateCollectionTime[collectionName]
+			dbCollections := recordCreateCollectionTime[info.GetDbId()]
+			if dbCollections == nil {
+				dbCollections = map[string]*pb.CollectionInfo{
+					collectionName: info,
+				}
+				recordCreateCollectionTime[info.GetDbId()] = dbCollections
+				continue
+			}
+			lastCollectionInfo, recordOK := dbCollections[collectionName]
 			if recordOK {
 				if createTime > lastCollectionInfo.CreateTime {
 					repeatedCollectionID[lastCollectionInfo.ID] = struct{}{}
-					recordCreateCollectionTime[collectionName] = info
+					dbCollections[collectionName] = info
 				} else {
 					repeatedCollectionID[info.ID] = struct{}{}
 				}
-				repeatedCollectionName[collectionName] = struct{}{}
+				repeatedCollectionName[info.GetDbId()] = append(repeatedCollectionName[info.GetDbId()], collectionName)
 			} else {
-				recordCreateCollectionTime[collectionName] = info
+				dbCollections[collectionName] = info
 			}
 		}
 
@@ -236,7 +243,7 @@ func (reader *CollectionReader) StartRead(ctx context.Context) {
 			seekPositions := make([]*msgpb.MsgPosition, 0)
 			if collectionSeekPositionMap != nil {
 				seekPositions = lo.Values(collectionSeekPositionMap)
-			} else if _, ok := repeatedCollectionName[info.Schema.Name]; ok {
+			} else if dbCollections, ok := repeatedCollectionName[info.DbId]; ok && lo.Contains(dbCollections, info.Schema.Name) {
 				log.Warn("server warn: find the repeated collection, the latest collection will use the collection start position.", zap.String("name", info.Schema.Name), zap.Int64("collection_id", info.ID))
 				for _, v := range info.StartPositions {
 					seekPositions = append(seekPositions, &msgstream.MsgPosition{