diff --git a/tests/D3D12/main.cpp b/tests/D3D12/main.cpp
index a2725d95..3a931a64 100644
--- a/tests/D3D12/main.cpp
+++ b/tests/D3D12/main.cpp
@@ -21,6 +21,7 @@
 #include "XCEngine/RHI/D3D12/D3D12DescriptorHeap.h"
 #include "XCEngine/RHI/D3D12/D3D12Fence.h"
 #include "XCEngine/RHI/D3D12/D3D12SwapChain.h"
+#include "XCEngine/RHI/D3D12/D3D12RootSignature.h"
 #include "XCEngine/RHI/D3D12/D3D12Screenshot.h"
 #include "XCEngine/Debug/Logger.h"
 #include "XCEngine/Debug/ConsoleLogSink.h"
@@ -65,6 +66,7 @@ UINT gDSVDescriptorSize = 0;
 // 命令相关
 XCEngine::RHI::D3D12CommandAllocator gCommandAllocator;
 XCEngine::RHI::D3D12CommandList gCommandList;
+XCEngine::RHI::D3D12RootSignature gRootSignature;
 
 // 同步对象
 XCEngine::RHI::D3D12Fence gFence;
@@ -277,14 +279,9 @@ ID3D12RootSignature* InitRootSignature() {
 	rootSignatureDesc.pStaticSamplers = samplerDesc;
 	rootSignatureDesc.Flags = D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT;
 
-	ID3DBlob* signature;
-	HRESULT hResult = D3D12SerializeRootSignature(&rootSignatureDesc, D3D_ROOT_SIGNATURE_VERSION_1, &signature, nullptr);
-	ID3D12RootSignature* d3d12RootSignature;
-	gDevice.GetDevice()->CreateRootSignature(
-		0, signature->GetBufferPointer(), signature->GetBufferSize(),
-		IID_PPV_ARGS(&d3d12RootSignature));
+	gRootSignature.Initialize(gDevice.GetDevice(), rootSignatureDesc);
 
-	return d3d12RootSignature;
+	return gRootSignature.GetRootSignature();
 }
 
 //=================================================================================