diff --git a/src/request/dispatchRequest.ts b/src/request/dispatchRequest.ts
index 581c0ad..1382b8e 100644
--- a/src/request/dispatchRequest.ts
+++ b/src/request/dispatchRequest.ts
@@ -26,7 +26,6 @@ export function dispatchRequest(config: AxiosRequestConfig) {
   assert(isString(config.url), 'url 不是一个 string');
   assert(isString(config.method), 'method 不是一个 string');
 
-  config.method = config.method!.toUpperCase() as AxiosRequestMethod;
   config.headers = flattenHeaders(config);
 
   // 可以携带 data 的请求方法，转换 data
diff --git a/src/request/request.ts b/src/request/request.ts
index 197abfc..74cb958 100644
--- a/src/request/request.ts
+++ b/src/request/request.ts
@@ -9,6 +9,7 @@ import {
   AxiosAdapterResponse,
   AxiosAdapterResponseError,
   AxiosAdapterPlatformTask,
+  AxiosAdapterRequestMethod,
 } from '../adpater/createAdapter';
 import { isCancelToken } from './cancel';
 import { AxiosErrorResponse, createError } from './createError';
@@ -26,8 +27,9 @@ export function request(config: AxiosRequestConfig) {
   return new Promise<AxiosResponse>((resolve, reject) => {
     const adapterConfig: AxiosAdapterRequestConfig = {
       ...(config as AxiosAdapterRequestConfig),
-      url: transformURL(config),
       type: generateType(config),
+      url: transformURL(config),
+      method: config.method!.toUpperCase() as AxiosAdapterRequestMethod,
       success,
       fail,
     };
diff --git a/test/request/dispatchRequest.test.ts b/test/request/dispatchRequest.test.ts
index 0b9435a..53a53d2 100644
--- a/test/request/dispatchRequest.test.ts
+++ b/test/request/dispatchRequest.test.ts
@@ -38,18 +38,6 @@ describe('src/request/dispatchRequest.ts', () => {
     ).not.toThrowError();
   });
 
-  testEachMethods('应该支持 %s 转全大写', (k) => {
-    const c = {
-      adapter: mockAdapter(),
-      url: '/',
-      method: k,
-    };
-
-    dispatchRequest(c);
-
-    expect(c.method).toBe(k.toUpperCase());
-  });
-
   test('坏的适配器应该抛出异常', () => {
     expect(
       dispatchRequest({
@@ -64,7 +52,7 @@ describe('src/request/dispatchRequest.ts', () => {
         "config": {
           "adapter": [Function],
           "headers": {},
-          "method": "GET",
+          "method": "get",
           "url": "/",
         },
         "request": undefined,
@@ -72,7 +60,7 @@ describe('src/request/dispatchRequest.ts', () => {
           "config": {
             "adapter": [Function],
             "headers": {},
-            "method": "GET",
+            "method": "get",
             "url": "/",
           },
           "data": undefined,
diff --git a/test/request/request.test.ts b/test/request/request.test.ts
index db05a77..1153e22 100644
--- a/test/request/request.test.ts
+++ b/test/request/request.test.ts
@@ -18,6 +18,7 @@ describe('src/request/request.ts', () => {
       },
       baseURL: 'http://api.com',
       url: 'test',
+      method: 'get' as const,
     };
     const c2 = {
       adapter(config: AnyObject) {
@@ -25,6 +26,7 @@ describe('src/request/request.ts', () => {
       },
       baseURL: 'http://api.com',
       url: 'test/:id',
+      method: 'get' as const,
       params: {
         id: 1,
       },
@@ -46,6 +48,18 @@ describe('src/request/request.ts', () => {
     request(c3);
   });
 
+  testEachMethods('应该支持 %s 转全大写', (k) => {
+    const c = {
+      adapter(config: AnyObject) {
+        expect(config.method).toBe(k.toUpperCase());
+      },
+      url: '/',
+      method: k,
+    };
+
+    request(c);
+  });
+
   testEachMethods('%s 方法应该返回正确的响应体结构', (k) => {
     const c = {
       adapter: mockAdapter(),