diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java
index 1cf024f30e4a49b79f12c0af8cb29e0416bd348b..d72ba20783e003764b48b3c9e07adc9aa94725f8 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java
@@ -158,9 +158,10 @@ public class TSDBStatement implements Statement {
             throw new SQLException(TSDBConstants.FixErrMsg(TSDBConstants.JNI_CONNECTION_NULL));
         } else if (resultSetPointer == TSDBConstants.JNI_NULL_POINTER) {
             // no result set is retrieved
+			this.connecter.freeResultSet(pSql);
             res = false;
         }
-		this.connecter.freeResultSet(pSql);
+
 
 		return res;
 	}