diff --git a/src/helpers/dynamicURL.ts b/src/helpers/dynamicURL.ts
index 19f7996..26f43e7 100644
--- a/src/helpers/dynamicURL.ts
+++ b/src/helpers/dynamicURL.ts
@@ -1,4 +1,4 @@
-const dynamicRE = /:([^/]+)/g;
+const dynamicRE = /\/:([^/]+)/g;
 export function dynamicURL(url: string, data: AnyObject = {}): string {
-  return url.replace(dynamicRE, (_, $2) => data[$2]);
+  return url.replace(dynamicRE, (_, $2) => `/${data[$2]}`);
 }
diff --git a/test/helpers/dynamicURL.test.ts b/test/helpers/dynamicURL.test.ts
index 88b4373..6d741df 100644
--- a/test/helpers/dynamicURL.test.ts
+++ b/test/helpers/dynamicURL.test.ts
@@ -19,4 +19,17 @@ describe('src/helpers/dynamicURL.ts', () => {
       }),
     ).toBe('http://api.com/tests/name/axios/type/0/list');
   });
+
+  test('应该忽略端口号', () => {
+    expect(
+      dynamicURL(':8080/:id', {
+        id: 0,
+      }),
+    ).toBe(':8080/0');
+    expect(
+      dynamicURL('http://api.com:8080/:id', {
+        id: 0,
+      }),
+    ).toBe('http://api.com:8080/0');
+  });
 });