diff --git a/integration-test/src/test/java/org/apache/iotdb/session/it/IoTDBSessionSimpleIT.java b/integration-test/src/test/java/org/apache/iotdb/session/it/IoTDBSessionSimpleIT.java
index 77ce160cbf56..f5272726ae8c 100644
--- a/integration-test/src/test/java/org/apache/iotdb/session/it/IoTDBSessionSimpleIT.java
+++ b/integration-test/src/test/java/org/apache/iotdb/session/it/IoTDBSessionSimpleIT.java
@@ -606,6 +606,10 @@ public void insertTabletWithStringValuesTest() {
       while (dataSet.hasNext()) {
         RowRecord rowRecord = dataSet.next();
         List<Field> fields = rowRecord.getFields();
+        // this test may occasionally fail by IndexOutOfBoundsException
+        if (fields.size() != 7) {
+          fail("The number of fields is not correct. fields values: " + fields);
+        }
         assertEquals(fields.get(5).getBinaryV(), fields.get(6).getBinaryV());
       }
     } catch (Exception e) {