diff --git a/tests/script/sh/checkAsan.sh b/tests/script/sh/checkAsan.sh
index 0ce74a989e632fc69d4c4fae4a76a1b6bb18959a..8e5738e91120f60231bff64a8610eed7e15b3578 100755
--- a/tests/script/sh/checkAsan.sh
+++ b/tests/script/sh/checkAsan.sh
@@ -3,6 +3,7 @@
 set +e
 #set -x
 
+export LD_PRELOAD=
 SCRIPT_DIR=`dirname $0`
 cd $SCRIPT_DIR/../
 SCRIPT_DIR=`pwd`
diff --git a/tests/script/sh/exec.sh b/tests/script/sh/exec.sh
index 5ef4cca741c8432db57ba35571c2de8fd545f1bf..ad671631a98a26e2eaaa2f2d889befa2ee69547c 100755
--- a/tests/script/sh/exec.sh
+++ b/tests/script/sh/exec.sh
@@ -11,6 +11,7 @@
 set +e
 #set -x
 
+export LD_PRELOAD=
 UNAME_BIN=`which uname`
 OS_TYPE=`$UNAME_BIN`
 
diff --git a/tests/script/sh/stop_dnodes.sh b/tests/script/sh/stop_dnodes.sh
index 38667d9b3f858423264b749df812d71c524aeb92..34777ccb5991b586da4bab7f505edfa3679b1ee6 100755
--- a/tests/script/sh/stop_dnodes.sh
+++ b/tests/script/sh/stop_dnodes.sh
@@ -3,10 +3,10 @@
 set +e
 #set -x
 
+export LD_PRELOAD=
 UNAME_BIN=`which uname`
 OS_TYPE=`$UNAME_BIN`
 
-export LD_PRELOAD=
 PID=`ps -ef|grep /usr/bin/taosd | grep -v grep | awk '{print $2}'`
 if [ -n "$PID" ]; then
   echo systemctl stop taosd
diff --git a/tests/system-test/test.py b/tests/system-test/test.py
index 712b9689ba31d46d4d4fad4f76404541526b7ac0..cf9aba123cbc2b902dd13152a24cafd53bdbb03d 100644
--- a/tests/system-test/test.py
+++ b/tests/system-test/test.py
@@ -555,5 +555,5 @@ if __name__ == "__main__":
         conn.close()
     if asan:
         tdDnodes.StopAllSigint()
-        tdLog.info("address sanitizer mode finished")
+        tdLog.info("Address sanitizer mode finished")
     sys.exit(0)
diff --git a/tests/system-test/test.sh b/tests/system-test/test.sh
index c6238d37d0dd58e7b20d304cc4eeea1fa7e0f19b..6fbc9961d69bef9fe27c8ddc88b93994866bf319 100755
--- a/tests/system-test/test.sh
+++ b/tests/system-test/test.sh
@@ -45,13 +45,11 @@ declare -x SIM_DIR=$TOP_DIR/sim
 PROGRAM=$BUILD_DIR/build/bin/tsim
 PRG_DIR=$SIM_DIR/tsim
 ASAN_DIR=$SIM_DIR/asan
-SYSTEM_TEST_DIR=$CODE_DIR/tests/system-test
 
 chmod -R 777 $PRG_DIR
 echo "------------------------------------------------------------------------"
 echo "Start TDengine Testing Case ..."
 echo "BUILD_DIR: $BUILD_DIR"
-echo "SYSTEM_TEST_DIR : $SYSTEM_TEST_DIR"
 echo "SIM_DIR  : $SIM_DIR"
 echo "CODE_DIR : $CODE_DIR"
 echo "ASAN_DIR  : $ASAN_DIR"
@@ -61,24 +59,36 @@ rm -rf $SIM_DIR/*
 mkdir -p $PRG_DIR
 mkdir -p $ASAN_DIR
 
-cd $SYSTEM_TEST_DIR
+cd $CODE_DIR
 ulimit -n 600000
 ulimit -c unlimited
 
 #sudo sysctl -w kernel.core_pattern=$TOP_DIR/core.%p.%e
 
 echo "ExcuteCmd:" $*
-echo "AsanDir:" $ASAN_DIR/psim.info
+AsanFile=$ASAN_DIR/psim.asan
+echo "AsanFile:" $AsanFile
 
 export LD_PRELOAD=libasan.so.5
-$* -a 2> $ASAN_DIR/psim.info
-
-result=$?
-echo "Execute result:" $result
-
-if [ $result -eq 0 ]; then
-  $CODE_DIR/tests/script/sh/checkAsan.sh
+$* -a 2> $AsanFile
+
+export LD_PRELOAD=
+AsanFileLen=`cat $AsanFile | wc -l`
+while [ $AsanFileLen -lt 10 ]
+do
+  sleep 1
+  `cat $AsanFile | wc -l`
+done 
+echo "AsanFileLen:" $AsanFileLen
+
+AsanFileSuccessLen=`grep -w successfully $AsanFile | wc -l`
+echo "AsanFileSuccessLen:" $AsanFileSuccessLen
+
+if [ $AsanFileSuccessLen -gt 0 ]; then
+  echo "Execute script successfully and check asan"
+  $CODE_DIR/../script/sh/checkAsan.sh
 else
+  echo "Execute script failure"
   exit 1
 fi