diff --git a/plugins/mysql/versions/5.5/install.sh b/plugins/mysql/versions/5.5/install.sh
index 3885af353..2d0d596ad 100755
--- a/plugins/mysql/versions/5.5/install.sh
+++ b/plugins/mysql/versions/5.5/install.sh
@@ -38,8 +38,8 @@ Install_mysql()
 	fi
 
 	MEM_INFO=$(free -m|grep Mem|awk '{printf("%.f",($2)/1024)}')
-	if [ "${cpuCore}" != "1" ] && [ "${MEM_INFO}" != "0" ];then
-	    if [ "${cpuCore}" -gt "${MEM_INFO}" ];then
+	if [ "${MEM_INFO}" != "0" ];then
+	    if [ "${cpuCore}" -lt "${MEM_INFO}" ];then
 	        cpuCore="${MEM_INFO}"
 	    fi
 	else
diff --git a/plugins/mysql/versions/5.6/install.sh b/plugins/mysql/versions/5.6/install.sh
index 40ac44c5d..2d9efb285 100755
--- a/plugins/mysql/versions/5.6/install.sh
+++ b/plugins/mysql/versions/5.6/install.sh
@@ -41,8 +41,8 @@ Install_mysql()
 	fi
 
 	MEM_INFO=$(free -m|grep Mem|awk '{printf("%.f",($2)/1024)}')
-	if [ "${cpuCore}" != "1" ] && [ "${MEM_INFO}" != "0" ];then
-	    if [ "${cpuCore}" -gt "${MEM_INFO}" ];then
+	if [ "${MEM_INFO}" != "0" ];then
+	    if [ "${cpuCore}" -lt "${MEM_INFO}" ];then
 	        cpuCore="${MEM_INFO}"
 	    fi
 	else
diff --git a/plugins/mysql/versions/5.7/install.sh b/plugins/mysql/versions/5.7/install.sh
index fb36229e8..de237fb09 100755
--- a/plugins/mysql/versions/5.7/install.sh
+++ b/plugins/mysql/versions/5.7/install.sh
@@ -43,8 +43,8 @@ Install_mysql()
 	fi
 
 	MEM_INFO=$(free -m|grep Mem|awk '{printf("%.f",($2)/1024)}')
-	if [ "${cpuCore}" != "1" ] && [ "${MEM_INFO}" != "0" ];then
-	    if [ "${cpuCore}" -gt "${MEM_INFO}" ];then
+	if [ "${MEM_INFO}" != "0" ];then
+	    if [ "${cpuCore}" -lt "${MEM_INFO}" ];then
 	        cpuCore="${MEM_INFO}"
 	    fi
 	else
diff --git a/plugins/mysql/versions/8.0/install.sh b/plugins/mysql/versions/8.0/install.sh
index f935d8a3a..0eeb0ed11 100755
--- a/plugins/mysql/versions/8.0/install.sh
+++ b/plugins/mysql/versions/8.0/install.sh
@@ -80,8 +80,8 @@ Install_mysql()
 	fi
 
 	MEM_INFO=$(free -m|grep Mem|awk '{printf("%.f",($2)/1024)}')
-	if [ "${cpuCore}" != "1" ] && [ "${MEM_INFO}" != "0" ];then
-	    if [ "${cpuCore}" -gt "${MEM_INFO}" ];then
+	if [ "${MEM_INFO}" != "0" ];then
+	    if [ "${cpuCore}" -lt "${MEM_INFO}" ];then
 	        cpuCore="${MEM_INFO}"
 	    fi
 	else