diff --git a/frontend/src/utils/util.ts b/frontend/src/utils/util.ts
index 7f084482e..6ad3d8bcc 100644
--- a/frontend/src/utils/util.ts
+++ b/frontend/src/utils/util.ts
@@ -168,6 +168,9 @@ export function checkIp(value: string): boolean {
 }
 
 export function checkPort(value: string): boolean {
+    if (Number(value) <= 0) {
+        return true;
+    }
     const reg = /^([0-9]|[1-9]\d{1,3}|[1-5]\d{4}|6[0-5]{2}[0-3][0-5])$/;
     if (!reg.test(value) && value !== '') {
         return true;
diff --git a/frontend/src/views/host/firewall/port/operate/index.vue b/frontend/src/views/host/firewall/port/operate/index.vue
index 46368879b..bf5344f7f 100644
--- a/frontend/src/views/host/firewall/port/operate/index.vue
+++ b/frontend/src/views/host/firewall/port/operate/index.vue
@@ -123,9 +123,12 @@ const onSubmit = async (formEl: FormInstance | undefined) => {
             dialogData.value.rowData.address = '';
         }
         let ports = [];
-        if (dialogData.value.rowData.port.indexOf('-') !== -1) {
+        if (dialogData.value.rowData.port.indexOf('-') !== -1 && !dialogData.value.rowData.port.startsWith('-')) {
             ports = dialogData.value.rowData.port.split('-');
-        } else if (dialogData.value.rowData.port.indexOf(',') !== -1) {
+        } else if (
+            dialogData.value.rowData.port.indexOf(',') !== -1 &&
+            !dialogData.value.rowData.port.startsWith(',')
+        ) {
             ports = dialogData.value.rowData.port.split(',');
         } else {
             ports.push(dialogData.value.rowData.port);