diff --git a/mmcv/ops/csrc/pytorch/npu/three_interpolate_npu.cpp b/mmcv/ops/csrc/pytorch/npu/three_interpolate_npu.cpp
new file mode 100644
index 0000000000..8913f5440e
--- /dev/null
+++ b/mmcv/ops/csrc/pytorch/npu/three_interpolate_npu.cpp
@@ -0,0 +1,34 @@
+#include <ATen/ATen.h>
+#include <cstdio>
+#include <iostream>
+#include "pytorch_npu_helper.hpp"
+
+using namespace NPU_NAME_SPACE;
+using namespace std;
+
+void three_interpolate_forward_npu(int b, int c, int m, int n
+                                   const Tensor points,
+                                   const Tensor idx,
+                                   const Tensor weight,
+                                   Tensor out)
+{
+    auto point_c_trans = points.transpose(1, 2);
+
+    OpCommand cmd;
+    cmd.Name("ThreeInterpolate")
+        .Input(point_c_trans)
+        .Input(idx)
+        .Input(weight)
+        .Output(out)
+        .Run();
+
+    auto output = out.view({b, n, c}).transpose(1, 2);
+    auto res = NpuUtils::format_contiguous(output);
+    out.copy_(res);
+}
+
+void three_interpolate_forward_impl(int b, int c, int m, int n,
+                                    const Tensor points, const Tensor idx,
+                                    const Tensor weight, Tensor out);
+
+REGISTER_NPU_IMPL(three_interpolate_forward_impl, three_interpolate_forward_npu);
\ No newline at end of file