diff --git a/runtime/main.go b/runtime/main.go
index 8d5fedd2c47fdb28dc85c7fb885bdacf3867c36b..917e3296f6e4e05feb77bc9c4fcfa8170392c9e4 100644
--- a/runtime/main.go
+++ b/runtime/main.go
@@ -378,9 +378,8 @@ func getValueByKey(data []string, name string) string {
 
 func getValueByDeviceKey(data []string) string {
 	res := ""
-	isKeyExist := false
-	for _, envLine := range data {
-		words := strings.SplitN(envLine, "=", kvPairSize)
+	for i := len(data) - 1; i >= 0; i-- {
+		words := strings.SplitN(data[i], "=", kvPairSize)
 		if len(words) != kvPairSize {
 			hwlog.RunLog.Error("environment error")
 			return ""
@@ -388,16 +387,12 @@ func getValueByDeviceKey(data []string) string {
 
 		if words[0] == ascendVisibleDevices {
 			res = words[1]
-			if strings.Contains(res, ascend) {
-				return res
-			}
-			isKeyExist = true
+			break
 		}
 	}
-	if isKeyExist && res == "" {
+	if res == "" {
 		hwlog.RunLog.Error("ASCEND_VISIBLE_DEVICES env variable is empty, will not mount any ascend device")
 	}
-
 	return res
 }