diff --git a/nonebot/drivers/aiohttp.py b/nonebot/drivers/aiohttp.py
index c24bb972..a4720af6 100644
--- a/nonebot/drivers/aiohttp.py
+++ b/nonebot/drivers/aiohttp.py
@@ -51,11 +51,12 @@ class Mixin(ForwardMixin):
             raise RuntimeError(f"Unsupported HTTP version: {setup.version}")
 
         timeout = aiohttp.ClientTimeout(setup.timeout)
-        files = None
+
+        data = setup.data
         if setup.files:
-            files = aiohttp.FormData()
+            data = aiohttp.FormData(data or {})
             for name, file in setup.files:
-                files.add_field(name, file[1], content_type=file[2], filename=file[0])
+                data.add_field(name, file[1], content_type=file[2], filename=file[0])
 
         cookies = {
             cookie.name: cookie.value for cookie in setup.cookies if cookie.value
@@ -66,7 +67,7 @@ class Mixin(ForwardMixin):
             async with session.request(
                 setup.method,
                 setup.url,
-                data=setup.content or setup.data or files,
+                data=setup.content or data,
                 json=setup.json,
                 headers=setup.headers,
                 timeout=timeout,
diff --git a/tests/test_driver.py b/tests/test_driver.py
index 624cf00e..48b503a0 100644
--- a/tests/test_driver.py
+++ b/tests/test_driver.py
@@ -177,11 +177,15 @@ async def test_http_driver(driver: Driver):
     assert data["json"] == {"json": "test"}
 
     request = Request(
-        "POST", "https://httpbin.org/post", files={"test": ("test.txt", b"test")}
+        "POST",
+        "https://httpbin.org/post",
+        data={"form": "test"},
+        files={"test": ("test.txt", b"test")},
     )
     response = await driver.request(request)
     assert response.status_code == 200 and response.content
     data = json.loads(response.content)
+    assert data["form"] == {"form": "test"}
     assert data["files"] == {"test": "test"}
 
     await asyncio.sleep(1)