diff --git a/paddle/phi/kernels/collect_fpn_proposals_kernel.h b/paddle/phi/kernels/collect_fpn_proposals_kernel.h
new file mode 100644
index 0000000000000..401e577c2985a
--- /dev/null
+++ b/paddle/phi/kernels/collect_fpn_proposals_kernel.h
@@ -0,0 +1,31 @@
+// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <vector>
+#include "paddle/phi/core/dense_tensor.h"
+
+namespace phi {
+template <typename T, typename Context>
+void GPUCollectFpnProposalsOpKernel(
+    const Context& dev_ctx,
+    const std::vector<const DenseTensor*>& multi_level_rois,
+    const std::vector<const DenseTensor*>& multi_level_scores,
+    const paddle::optional<std::vector<const DenseTensor*>>&
+        multi_level_rois_num,
+    int post_nms_topn,
+    DenseTensor* fpn_rois_out,
+    DenseTensor* rois_num_out);
+}  // namespace phi
diff --git a/paddle/phi/kernels/cpu/collect_fpn_proposals_kernel.cc b/paddle/phi/kernels/cpu/collect_fpn_proposals_kernel.cc
index 31595b21090e6..54a4150ef7a63 100644
--- a/paddle/phi/kernels/cpu/collect_fpn_proposals_kernel.cc
+++ b/paddle/phi/kernels/cpu/collect_fpn_proposals_kernel.cc
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include "paddle/phi/kernels/collect_fpn_proposals_kernel.h"
 #include "paddle/phi/core/kernel_registry.h"
 #include "paddle/phi/kernels/impl/collect_fpn_proposals_kernel_impl.h"
 
diff --git a/paddle/phi/kernels/gpu/collect_fpn_proposals_kernel.cu b/paddle/phi/kernels/gpu/collect_fpn_proposals_kernel.cu
index f75694421d6a8..d39275ba3fc13 100644
--- a/paddle/phi/kernels/gpu/collect_fpn_proposals_kernel.cu
+++ b/paddle/phi/kernels/gpu/collect_fpn_proposals_kernel.cu
@@ -25,6 +25,7 @@ namespace cub = hipcub;
 #include "paddle/phi/core/allocator.h"
 #include "paddle/phi/core/kernel_registry.h"
 #include "paddle/phi/core/mixed_vector.h"
+#include "paddle/phi/kernels/collect_fpn_proposals_kernel.h"
 #include "paddle/phi/kernels/funcs/concat_and_split_functor.h"
 #include "paddle/phi/kernels/funcs/detection/bbox_util.h"
 #include "paddle/phi/kernels/funcs/for_range.h"