diff --git a/script/tools/delete_iso.sh b/script/tools/delete_iso.sh
new file mode 100644
index 0000000000000000000000000000000000000000..de73ad91429426a1dea9d18734ee2dc68dbf0338
--- /dev/null
+++ b/script/tools/delete_iso.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+# usage: bash delete_iso.sh <IP> <USER> <PASSWD> <directory of iso>
+echo "--------------- start delete older iso ----------------"
+DIR=$1
+my_key=$2
+ISO_DAYS=30
+TODAY=`date +%s`
+files=`ssh -i $my_key -o StrictHostKeyChecking=no root@121.36.84.172 "ls $DIR | grep openeuler-"`
+
+for file in $files
+do
+    echo $file
+	if [[ $file == openeuler-* ]];then
+		year=`echo $file | cut -d "-" -f 2`
+		month=`echo $file | cut -d "-" -f 3`
+		day=`echo $file | cut -d "-" -f 4`
+		hour=`echo $file | cut -d "-" -f 5`
+		if [[ -z $hour ]];then
+			echo "don't delete  $DIR/$file, check next"
+			continue
+		fi
+   		file=`echo $file | sed 's/\r//g'`
+		echo "$file +++++++"
+		date=`date +%s -d "$year-$month-$day"`
+		if [ `expr $TODAY - $date` -gt `expr $ISO_DAYS \* 24 \* 3600` ];then
+			if [[ "x$file" != "x*" ]];then
+				echo "delete directory $DIR/$file"
+				ssh -i $my_key -o StrictHostKeyChecking=no root@121.36.84.172 "cd $DIR && rm -rf $file" 
+			fi
+		else
+			echo "don't delete $DIR/$file"
+		fi
+	fi
+done
+
+echo "--------------- end delete older iso ----------------"