diff --git a/plugins/php-yum/install.sh b/plugins/php-yum/install.sh
index 86ce1bd17..5dd556d1f 100755
--- a/plugins/php-yum/install.sh
+++ b/plugins/php-yum/install.sh
@@ -96,6 +96,8 @@ if [ "${action}" == "install" ] && [ -d ${serverPath}/php-yum/${type} ];then
 	cd ${rootPath}/plugins/php-yum/versions && bash common.sh ${type} install mbstring
 	cd ${rootPath}/plugins/php-yum/versions && bash common.sh ${type} install mongodb
 	cd ${rootPath}/plugins/php-yum/versions && bash common.sh ${type} install zip
+	cd ${rootPath}/plugins/php-yum/versions && bash common.sh ${type} install simplexml
+	
 	echo "install PHP-YUM[${type}] extend end"
 
 	#初始化