diff --git a/custom_ops/xpu_ops/src/ops/pybind/pybind.cc b/custom_ops/xpu_ops/src/ops/pybind/pybind.cc
index e8eea990b..832bdbf69 100644
--- a/custom_ops/xpu_ops/src/ops/pybind/pybind.cc
+++ b/custom_ops/xpu_ops/src/ops/pybind/pybind.cc
@@ -43,6 +43,36 @@ void GetOutputKVSignal(const paddle::Tensor &x,
                        int64_t rank_id,
                        bool wait_flag);
 
+std::vector<paddle::Tensor> BlockAttn(
+    const paddle::Tensor& qkv,
+    const paddle::Tensor& key_cache,
+    const paddle::Tensor& value_cache,
+    const paddle::Tensor& cum_offsets,
+    const paddle::Tensor& rotary_embs,
+    const paddle::Tensor& block_tables,
+    const paddle::Tensor& prefix_block_tables,
+    const paddle::Tensor& len_info_cpu,
+    const paddle::Tensor& encoder_seq_lod_cpu,
+    const paddle::Tensor& decoder_seq_lod_cpu,
+    const paddle::Tensor& encoder_kv_lod_cpu,
+    const paddle::Tensor& encoder_batch_map_cpu,
+    const paddle::Tensor& decoder_context_len_cpu,
+    const paddle::Tensor& decoder_context_len_cache_cpu,
+    const paddle::Tensor& decoder_batch_map_cpu,
+    const paddle::Tensor& prefix_len_cpu,
+    const paddle::optional<paddle::Tensor>& k_scales,
+    const paddle::optional<paddle::Tensor>& v_scales,
+    const paddle::optional<paddle::Tensor>& k_scales_inv,
+    const paddle::optional<paddle::Tensor>& v_scales_inv,
+    const paddle::optional<paddle::Tensor>& k_zeros,
+    const paddle::optional<paddle::Tensor>& v_zeros,
+    const paddle::optional<paddle::Tensor>& shift,
+    const paddle::optional<paddle::Tensor>& smooth,
+    const paddle::optional<paddle::Tensor>& kv_signal_data_cpu,
+    const paddle::optional<paddle::Tensor>& cachekv_signal_thread_cpu,
+    const std::string &pos_emb_type="NORMAL",
+    bool rope_3d=false);
+
 std::vector<paddle::Tensor> MoERedundantTopKSelect(
     const paddle::Tensor& gating_logits,
     const paddle::Tensor& expert_id_to_ep_rank_array,
@@ -327,6 +357,37 @@ std::vector<paddle::Tensor> SpeculateGetSeqLensOutput(
     const paddle::Tensor& seq_lens_decoder);
 
 PYBIND11_MODULE(fastdeploy_ops, m) {
+  m.def("block_attn",
+        &BlockAttn,
+        py::arg("qkv"),
+        py::arg("key_cache"),
+        py::arg("value_cache"),
+        py::arg("cum_offsets"),
+        py::arg("rotary_embs"),
+        py::arg("block_tables"),
+        py::arg("prefix_block_tables"),
+        py::arg("len_info_cpu"),
+        py::arg("encoder_seq_lod_cpu"),
+        py::arg("decoder_seq_lod_cpu"),
+        py::arg("encoder_kv_lod_cpu"),
+        py::arg("encoder_batch_map_cpu"),
+        py::arg("decoder_context_len_cpu"),
+        py::arg("decoder_context_len_cache_cpu"),
+        py::arg("decoder_batch_map_cpu"),
+        py::arg("prefix_len_cpu"),
+        py::arg("k_scales"),
+        py::arg("v_scales"),
+        py::arg("k_scales_inv"),
+        py::arg("v_scales_inv"),
+        py::arg("k_zeros"),
+        py::arg("v_zeros"),
+        py::arg("shift"),
+        py::arg("smooth"),
+        py::arg("kv_signal_data_cpu"),
+        py::arg("cachekv_signal_thread_cpu"),
+        py::arg("pos_emb_type") = "NORMAL",
+        py::arg("rope_3d") = false,
+        "block attention in XPU");
   m.def("cuda_host_alloc",
         &custom_xpu_host_alloc,
         "Allocate pinned memory",