diff --git a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/WritableMemChunkGroup.java b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/WritableMemChunkGroup.java
index ac5d588eb4fd..ae185f890670 100644
--- a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/WritableMemChunkGroup.java
+++ b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/memtable/WritableMemChunkGroup.java
@@ -118,7 +118,7 @@ public Map<String, IWritableMemChunk> getMemChunkMap() {
 
   @Override
   public boolean isEmpty() {
-    return memChunkMap.isEmpty();
+    return memChunkMap.isEmpty() || count() == 0;
   }
 
   @Override