diff --git a/CHANGELOG-3.1.md b/CHANGELOG-3.1.md
index 53c0e38b4..4b865b957 100644
--- a/CHANGELOG-3.1.md
+++ b/CHANGELOG-3.1.md
@@ -1,5 +1,9 @@
 # v3.1.12 - TBD
 
+## Fixed
+
+- [#6566](https://github.com/hyperf/hyperf/pull/6566) Fixed bug that the numeric keys will be reset when using `$request->all()`.
+
 # v3.1.11 - 2024-03-01
 
 ## Fixed
diff --git a/src/http-server/src/Request.php b/src/http-server/src/Request.php
index 1dbe73c51..c3fec5d58 100644
--- a/src/http-server/src/Request.php
+++ b/src/http-server/src/Request.php
@@ -566,7 +566,7 @@ class Request implements RequestInterface
                 $data = [];
             }
 
-            return array_merge($data, $request->getQueryParams());
+            return $request->getQueryParams() + $data;
         });
     }
 
diff --git a/src/http-server/tests/RequestTest.php b/src/http-server/tests/RequestTest.php
index a884085b0..44ddd573a 100644
--- a/src/http-server/tests/RequestTest.php
+++ b/src/http-server/tests/RequestTest.php
@@ -80,12 +80,32 @@ class RequestTest extends TestCase
     public function testRequestAll()
     {
         $psrRequest = Mockery::mock(ServerRequestPlusInterface::class);
-        $psrRequest->shouldReceive('getParsedBody')->andReturn(['id' => 1]);
+        $psrRequest->shouldReceive('getParsedBody')->andReturn(['id' => 1, '123' => '123']);
         $psrRequest->shouldReceive('getQueryParams')->andReturn(['name' => 'Hyperf']);
         RequestContext::set($psrRequest);
 
         $psrRequest = new Request();
-        $this->assertSame(['id' => 1, 'name' => 'Hyperf'], $psrRequest->all());
+        $this->assertSame(['name' => 'Hyperf', 'id' => 1, 123 => '123'], $psrRequest->all());
+
+        $psrRequest = Mockery::mock(ServerRequestPlusInterface::class);
+        $psrRequest->shouldReceive('getParsedBody')->andReturn(['name' => 'Hyperf']);
+        $psrRequest->shouldReceive('getQueryParams')->andReturn(['id' => 1, '123' => '123']);
+        RequestContext::set($psrRequest);
+
+        $psrRequest = new Request();
+
+        $this->assertSame(['name' => 'Hyperf', 'id' => 1, 123 => '123'], $psrRequest->all());
+    }
+
+    public function testRequestAllByReplace()
+    {
+        $psrRequest = Mockery::mock(ServerRequestPlusInterface::class);
+        $psrRequest->shouldReceive('getParsedBody')->andReturn(['id' => 1, 'data' => ['id' => 2]]);
+        $psrRequest->shouldReceive('getQueryParams')->andReturn(['data' => 'Hyperf']);
+        RequestContext::set($psrRequest);
+
+        $psrRequest = new Request();
+        $this->assertEquals(['id' => 1, 'data' => 'Hyperf'], $psrRequest->all());
     }
 
     public function testRequestInputs()