diff --git a/src/plugin/impl/opr_footprint.cpp b/src/plugin/impl/opr_footprint.cpp
index 36d3e0091ed8c4b17aacc53fdfc9f19895489b01..6d6ff0450c17067e864dd1d119b4ba6f80a2295b 100644
--- a/src/plugin/impl/opr_footprint.cpp
+++ b/src/plugin/impl/opr_footprint.cpp
@@ -176,7 +176,7 @@ uint64_t eval_conv_computation(const TensorShape& src_shape,
     };
     if (param.format == Param::Format::NCHW4 ||
         param.format == Param::Format::NCHW4_NCHW ||
-        param.format == Param::Format::NCHW4_NHWC || 
+        param.format == Param::Format::NCHW4_NHWC ||
         param.format == Param::Format::NCHW4_NCHW32 ||
         param.format == Param::Format::NCHW88 ||
         param.format == Param::Format::NCHW44 ||
@@ -223,9 +223,9 @@ uint64_t eval_conv_computation(const TensorShape& src_shape,
 
     uint64_t fh = static_cast<uint64_t>(filter_shape[spatial_start]);
     uint64_t fw = static_cast<uint64_t>(filter_shape[spatial_start + 1]);
-    
+
     // mul and add are counted as 2 operations
-    
+
     return dst_shape.total_nr_elems() * fh * fw *
            static_cast<uint64_t>(src_shape[cpos]) / group * 2;
 }
@@ -464,6 +464,14 @@ uint64_t opr_footprint_func<opr::PoolingForward>(cg::OperatorNodeBase* opr) {
     return opr->output(0)->shape().total_nr_elems() * area;
 }
 
+// PoolingBackWard
+template <>
+uint64_t opr_footprint_func<opr::PoolingBackward>(cg::OperatorNodeBase* opr) {
+    auto&& param = opr->cast_final_safe<opr::PoolingBackward>().param();
+    auto area = param.window_h * param.window_w;
+    return opr->input()[0]->shape().total_nr_elems() * area;
+}
+
 // Concat
 template <>
 uint64_t opr_footprint_func<opr::Concat>(cg::OperatorNodeBase* opr) {
@@ -516,6 +524,7 @@ REGISTE_PARAM_JSON_FUNC(BatchedMatrixMul)
 REGISTE_PARAM_JSON_FUNC(Dot)
 REGISTE_PARAM_JSON_FUNC(MatrixInverse)
 REGISTE_PARAM_JSON_FUNC(PoolingForward)
+REGISTE_PARAM_JSON_FUNC(PoolingBackward)
 REGISTE_PARAM_JSON_FUNC(SVD)
 REGISTE_PARAM_JSON_FUNC(MaskConvolution)
 REGISTE_PARAM_JSON_FUNC(Images2Neibs)
@@ -666,7 +675,7 @@ std::shared_ptr<json::Value> opr_param_json_func<opr::standalone::NMSKeep>(
                 {"max_output", json::Number::make(nms_param.max_output)},
             });
     }
-    
+
 
 #endif // MGB_ENABLE_JSON
 
@@ -700,6 +709,7 @@ void OprFootprint::init_all_footprints() {
     add_single_comp_footprint<opr::ConvolutionBackwardFilter>();
     add_single_comp_footprint<opr::MatrixMul>();
     add_single_comp_footprint<opr::PoolingForward>();
+    add_single_comp_footprint<opr::PoolingBackward>();
     add_single_comp_footprint<opr::Concat>();
     add_single_comp_footprint<opr::Dimshuffle>();
     add_single_comp_footprint<opr::Reduce>();
@@ -725,6 +735,7 @@ void OprFootprint::init_all_footprints() {
     add_single_param_json<opr::Dot>();
     add_single_param_json<opr::MatrixInverse>();
     add_single_param_json<opr::PoolingForward>();
+    add_single_param_json<opr::PoolingBackward>();
     add_single_param_json<opr::SVD>();
     add_single_param_json<opr::MaskConvolution>();
     add_single_param_json<opr::Images2Neibs>();