diff --git a/lemp.sh b/lemp.sh
index 93935a7..341ad42 100755
--- a/lemp.sh
+++ b/lemp.sh
@@ -37,12 +37,14 @@ while :; do echo
   if [[ ! $mariadb_yn =~ ^[y,n]$ ]]; then
     echo "${CWARNING}input error! Please only input 'y' or 'n'${CEND}"
   else
-    while :; do echo
-        read -p "Please type MariaDB root password:(Default lemp.sh press Enter) " MariaDB_ROOT_PWD
-        [ -z "$MariaDB_ROOT_PWD" ] && MariaDB_ROOT_PWD="lemp.sh"
-        [ -n "`echo $MariaDB_ROOT_PWD | grep '[+|&]'`" ] && { echo "${CWARNING}input error,not contain a plus sign (+) and & ${CEND}"; continue; }
-        break;
-    done
+    if [ "$mariadb_yn" == 'y' ]; then
+        while :; do echo
+            read -p "Please type MariaDB root password:(Default lemp.sh press Enter) " MariaDB_ROOT_PWD
+            [ -z "$MariaDB_ROOT_PWD" ] && MariaDB_ROOT_PWD="lemp.sh"
+            [ -n "`echo $MariaDB_ROOT_PWD | grep '[+|&]'`" ] && { echo "${CWARNING}input error,not contain a plus sign (+) and & ${CEND}"; continue; }
+            break;
+        done
+    fi
   fi
 done