diff --git a/src/utils/body.ts b/src/utils/body.ts
index 220bc0fc..34b0b8eb 100644
--- a/src/utils/body.ts
+++ b/src/utils/body.ts
@@ -64,7 +64,18 @@ export async function readBody<T=any> (event: H3Event): Promise<T> {
   const body = await readRawBody(event) as string;
 
   if (event.node.req.headers["content-type"] === "application/x-www-form-urlencoded") {
-    const parsedForm = Object.fromEntries(new URLSearchParams(body));
+    const form = new URLSearchParams(body);
+    const parsedForm: Record<string, any> = Object.create(null);
+    for (const [key, value] of form.entries()) {
+      if (key in parsedForm) {
+        if (!Array.isArray(parsedForm[key])) {
+          parsedForm[key] = [parsedForm[key]];
+        }
+        parsedForm[key].push(value);
+      } else {
+        parsedForm[key] = value;
+      }
+    }
     return parsedForm as unknown as T;
   }
 
diff --git a/test/body.test.ts b/test/body.test.ts
index 6cda4c8a..dc0ab83a 100644
--- a/test/body.test.ts
+++ b/test/body.test.ts
@@ -118,12 +118,12 @@ describe("", () => {
         expect(body).toMatchObject({
           field: "value",
           another: "true",
-          number: "20"
+          number: ["20", "30", "40"]
         });
         return "200";
       }));
       const result = await request.post("/api/test")
-        .send("field=value&another=true&number=20");
+        .send("field=value&another=true&number=20&number=30&number=40");
 
       expect(result.text).toBe("200");
     });