diff --git a/deploy/cpp/include/config_parser.h b/deploy/cpp/include/config_parser.h
index 82d103723aa134ff72449a2d0ca3735b68c86fee..1f2e381c5284bb7ce16a6b06f858a32e83290f98 100644
--- a/deploy/cpp/include/config_parser.h
+++ b/deploy/cpp/include/config_parser.h
@@ -120,6 +120,10 @@ class ConfigPaser {
       }
     }
 
+    if (config["mask"].IsDefined()) {
+      mask_ = config["mask"].as<bool>();
+    }
+
     return true;
   }
   std::string mode_;
@@ -132,6 +136,7 @@ class ConfigPaser {
   std::vector<int> fpn_stride_;
   bool use_dynamic_shape_;
   float conf_thresh_;
+  bool mask_ = false;
 };
 
 }  // namespace PaddleDetection
diff --git a/deploy/cpp/include/object_detector.h b/deploy/cpp/include/object_detector.h
index 0a336c33401d5d7d3e4e27a22862fd666da1a36e..30dd09ab7ef808314a353c72660f78b368004d25 100644
--- a/deploy/cpp/include/object_detector.h
+++ b/deploy/cpp/include/object_detector.h
@@ -114,6 +114,7 @@ class ObjectDetector {
                    std::vector<PaddleDetection::ObjectResult>* result,
                    std::vector<int> bbox_num,
                    std::vector<float> output_data_,
+                   std::vector<int> output_mask_data_,
                    bool is_rbox);
 
   std::shared_ptr<Predictor> predictor_;
diff --git a/deploy/cpp/include/utils.h b/deploy/cpp/include/utils.h
index 3802e1267176a050402d1fdf742e54a79f33ffb9..b41db0dacff17339ffcac591b7825cec09d3663d 100644
--- a/deploy/cpp/include/utils.h
+++ b/deploy/cpp/include/utils.h
@@ -14,13 +14,13 @@
 
 #pragma once
 
-#include <string>
-#include <vector>
-#include <memory>
-#include <utility>
+#include <algorithm>
 #include <ctime>
+#include <memory>
 #include <numeric>
-#include <algorithm>
+#include <string>
+#include <utility>
+#include <vector>
 
 namespace PaddleDetection {
 
@@ -32,8 +32,10 @@ struct ObjectResult {
   int class_id;
   // Confidence of detected object
   float confidence;
+  // Mask of detected object
+  std::vector<int> mask;
 };
 
 void nms(std::vector<ObjectResult> &input_boxes, float nms_threshold);
 
-}  // namespace PaddleDetection
\ No newline at end of file
+}  // namespace PaddleDetection
diff --git a/deploy/cpp/src/object_detector.cc b/deploy/cpp/src/object_detector.cc
index a99fcd515337e72ff59a09c7eeaa12072a774cc1..38914b4b5d27e9eb2aa137f273cde148d3fb9ad7 100644
--- a/deploy/cpp/src/object_detector.cc
+++ b/deploy/cpp/src/object_detector.cc
@@ -103,6 +103,8 @@ cv::Mat VisualizeResult(
     const std::vector<int>& colormap,
     const bool is_rbox = false) {
   cv::Mat vis_img = img.clone();
+  int img_h = vis_img.rows;
+  int img_w = vis_img.cols;
   for (int i = 0; i < results.size(); ++i) {
     // Configure color and text size
     std::ostringstream oss;
@@ -136,6 +138,33 @@ cv::Mat VisualizeResult(
       cv::Rect roi = cv::Rect(results[i].rect[0], results[i].rect[1], w, h);
       // Draw roi object, text, and background
       cv::rectangle(vis_img, roi, roi_color, 2);
+
+      // Draw mask
+      std::vector<int> mask_v = results[i].mask;
+      if (mask_v.size() > 0) {
+        cv::Mat mask = cv::Mat(img_h, img_w, CV_32S);
+        std::memcpy(mask.data, mask_v.data(), mask_v.size() * sizeof(int));
+
+        cv::Mat colored_img = vis_img.clone();
+
+        std::vector<cv::Mat> contours;
+        cv::Mat hierarchy;
+        mask.convertTo(mask, CV_8U);
+        cv::findContours(
+            mask, contours, hierarchy, cv::RETR_CCOMP, cv::CHAIN_APPROX_SIMPLE);
+        cv::drawContours(colored_img,
+                         contours,
+                         -1,
+                         roi_color,
+                         -1,
+                         cv::LINE_8,
+                         hierarchy,
+                         100);
+
+        cv::Mat debug_roi = vis_img;
+        colored_img = 0.4 * colored_img + 0.6 * vis_img;
+        colored_img.copyTo(vis_img, mask);
+      }
     }
 
     origin.x = results[i].rect[0];
@@ -171,9 +200,16 @@ void ObjectDetector::Postprocess(
     std::vector<PaddleDetection::ObjectResult>* result,
     std::vector<int> bbox_num,
     std::vector<float> output_data_,
+    std::vector<int> output_mask_data_,
     bool is_rbox = false) {
   result->clear();
   int start_idx = 0;
+  int total_num = std::accumulate(bbox_num.begin(), bbox_num.end(), 0);
+  int out_mask_dim = -1;
+  if (config_.mask_) {
+    out_mask_dim = output_mask_data_.size() / total_num;
+  }
+
   for (int im_id = 0; im_id < mats.size(); im_id++) {
     cv::Mat raw_mat = mats[im_id];
     int rh = 1;
@@ -218,6 +254,17 @@ void ObjectDetector::Postprocess(
         result_item.rect = {xmin, ymin, xmax, ymax};
         result_item.class_id = class_id;
         result_item.confidence = score;
+
+        if (config_.mask_) {
+          std::vector<int> mask;
+          for (int k = 0; k < out_mask_dim; ++k) {
+            if (output_mask_data_[k + j * out_mask_dim] > -1) {
+              mask.push_back(output_mask_data_[k + j * out_mask_dim]);
+            }
+          }
+          result_item.mask = mask;
+        }
+
         result->push_back(result_item);
       }
     }
@@ -241,6 +288,7 @@ void ObjectDetector::Predict(const std::vector<cv::Mat> imgs,
   std::vector<float> scale_factor_all(batch_size * 2);
   std::vector<const float*> output_data_list_;
   std::vector<int> out_bbox_num_data_;
+  std::vector<int> out_mask_data_;
 
   // in_net img for each batch
   std::vector<cv::Mat> in_net_img_all(batch_size);
@@ -322,7 +370,10 @@ void ObjectDetector::Predict(const std::vector<cv::Mat> imgs,
       std::vector<int> output_shape = output_tensor->shape();
       int out_num = std::accumulate(
           output_shape.begin(), output_shape.end(), 1, std::multiplies<int>());
-      if (output_tensor->type() == paddle_infer::DataType::INT32) {
+      if (config_.mask_ && (j == 2)) {
+        out_mask_data_.resize(out_num);
+        output_tensor->CopyToCpu(out_mask_data_.data());
+      } else if (output_tensor->type() == paddle_infer::DataType::INT32) {
         out_bbox_num_data_.resize(out_num);
         output_tensor->CopyToCpu(out_bbox_num_data_.data());
       } else {
@@ -347,7 +398,10 @@ void ObjectDetector::Predict(const std::vector<cv::Mat> imgs,
       int out_num = std::accumulate(
           output_shape.begin(), output_shape.end(), 1, std::multiplies<int>());
       output_shape_list.push_back(output_shape);
-      if (output_tensor->type() == paddle_infer::DataType::INT32) {
+      if (config_.mask_ && (j == 2)) {
+        out_mask_data_.resize(out_num);
+        output_tensor->CopyToCpu(out_mask_data_.data());
+      } else if (output_tensor->type() == paddle_infer::DataType::INT32) {
         out_bbox_num_data_.resize(out_num);
         output_tensor->CopyToCpu(out_bbox_num_data_.data());
       } else {
@@ -390,7 +444,12 @@ void ObjectDetector::Predict(const std::vector<cv::Mat> imgs,
     bbox_num->push_back(result->size());
   } else {
     is_rbox = output_shape_list[0][output_shape_list[0].size() - 1] % 10 == 0;
-    Postprocess(imgs, result, out_bbox_num_data_, out_tensor_list[0], is_rbox);
+    Postprocess(imgs,
+                result,
+                out_bbox_num_data_,
+                out_tensor_list[0],
+                out_mask_data_,
+                is_rbox);
     for (int k = 0; k < out_bbox_num_data_.size(); k++) {
       int tmp = out_bbox_num_data_[k];
       bbox_num->push_back(tmp);
diff --git a/deploy/cpp/src/preprocess_op.cc b/deploy/cpp/src/preprocess_op.cc
index 4ac3daa304e933e307596423442502a5bfc06da5..d4a1fb4191b449267581c71e94b5ff959ac886c3 100644
--- a/deploy/cpp/src/preprocess_op.cc
+++ b/deploy/cpp/src/preprocess_op.cc
@@ -60,12 +60,11 @@ void Permute::Run(cv::Mat* im, ImageBlob* data) {
 
 void Resize::Run(cv::Mat* im, ImageBlob* data) {
   auto resize_scale = GenerateScale(*im);
-  data->im_shape_ = {static_cast<float>(im->cols * resize_scale.first),
-                     static_cast<float>(im->rows * resize_scale.second)};
-  data->in_net_shape_ = {static_cast<float>(im->cols * resize_scale.first),
-                         static_cast<float>(im->rows * resize_scale.second)};
   cv::resize(
       *im, *im, cv::Size(), resize_scale.first, resize_scale.second, interp_);
+
+  data->in_net_shape_ = {static_cast<float>(im->rows),
+                         static_cast<float>(im->cols)};
   data->im_shape_ = {
       static_cast<float>(im->rows), static_cast<float>(im->cols),
   };
@@ -154,6 +153,7 @@ float LetterBoxResize::GenerateScale(const cv::Mat& im) {
 
 void PadStride::Run(cv::Mat* im, ImageBlob* data) {
   if (stride_ <= 0) {
+    data->in_net_im_ = im->clone();
     return;
   }
   int rc = im->channels();
@@ -242,7 +242,9 @@ bool CheckDynamicInput(const std::vector<cv::Mat>& imgs) {
   int h = imgs.at(0).rows;
   int w = imgs.at(0).cols;
   for (int i = 1; i < imgs.size(); ++i) {
-    if (imgs.at(i).rows != h || imgs.at(i).cols != w) {
+    int hi = imgs.at(i).rows;
+    int wi = imgs.at(i).cols;
+    if (hi != h || wi != w) {
       return true;
     }
   }
diff --git a/deploy/python/infer.py b/deploy/python/infer.py
index 3296e16e5a9612ba71d862d6843d9b9f576be1ff..2808d2c58a2514c60b68a3e1ab4a21f0093a25c4 100644
--- a/deploy/python/infer.py
+++ b/deploy/python/infer.py
@@ -206,7 +206,8 @@ class Detector(object):
             for k, v in res.items():
                 results[k].append(v)
         for k, v in results.items():
-            results[k] = np.concatenate(v)
+            if k != 'masks':
+                results[k] = np.concatenate(v)
         return results
 
     def get_timer(self):
@@ -296,7 +297,7 @@ class Detector(object):
         if not os.path.exists(self.output_dir):
             os.makedirs(self.output_dir)
         out_path = os.path.join(self.output_dir, video_out_name)
-        fourcc = cv2.VideoWriter_fourcc(*'mp4v')
+        fourcc = cv2.VideoWriter_fourcc(* 'mp4v')
         writer = cv2.VideoWriter(out_path, fourcc, fps, (width, height))
         index = 1
         while (1):
diff --git a/deploy/python/visualize.py b/deploy/python/visualize.py
index 9c07b8491d6790ddd2303d9abe1c45070f8c5657..c26a6e4673c846a5ad0cb0d2c098edea207a7a60 100644
--- a/deploy/python/visualize.py
+++ b/deploy/python/visualize.py
@@ -96,6 +96,8 @@ def draw_mask(im, np_boxes, np_masks, labels, threshold=0.5):
     expect_boxes = (np_boxes[:, 1] > threshold) & (np_boxes[:, 0] > -1)
     np_boxes = np_boxes[expect_boxes, :]
     np_masks = np_masks[expect_boxes, :, :]
+    im_h, im_w = im.shape[:2]
+    np_masks = np_masks[:, :im_h, :im_w]
     for i in range(len(np_masks)):
         clsid, score = int(np_boxes[i][0]), np_boxes[i][1]
         mask = np_masks[i]
diff --git a/ppdet/metrics/json_results.py b/ppdet/metrics/json_results.py
index c703de63be89e326da979d2edbe0a3e1afca3bec..93354ec1fc592b1567b5f0a3e2044a215d231a30 100755
--- a/ppdet/metrics/json_results.py
+++ b/ppdet/metrics/json_results.py
@@ -65,6 +65,14 @@ def get_det_poly_res(bboxes, bbox_nums, image_id, label_to_cat_id_map, bias=0):
     return det_res
 
 
+def strip_mask(mask):
+    row = mask[0, 0, :]
+    col = mask[0, :, 0]
+    im_h = len(col) - np.count_nonzero(col == -1)
+    im_w = len(row) - np.count_nonzero(row == -1)
+    return mask[:, :im_h, :im_w]
+
+
 def get_seg_res(masks, bboxes, mask_nums, image_id, label_to_cat_id_map):
     import pycocotools.mask as mask_util
     seg_res = []
@@ -72,8 +80,10 @@ def get_seg_res(masks, bboxes, mask_nums, image_id, label_to_cat_id_map):
     for i in range(len(mask_nums)):
         cur_image_id = int(image_id[i][0])
         det_nums = mask_nums[i]
+        mask_i = masks[k:k + det_nums]
+        mask_i = strip_mask(mask_i)
         for j in range(det_nums):
-            mask = masks[k].astype(np.uint8)
+            mask = mask_i[j].astype(np.uint8)
             score = float(bboxes[k][1])
             label = int(bboxes[k][0])
             k = k + 1
diff --git a/ppdet/modeling/architectures/cascade_rcnn.py b/ppdet/modeling/architectures/cascade_rcnn.py
index 4b5caa7a3ad16f535c007ffa0888b44c8958478b..fc5949af0ac4efaea3ea28bbb416859881461f30 100644
--- a/ppdet/modeling/architectures/cascade_rcnn.py
+++ b/ppdet/modeling/architectures/cascade_rcnn.py
@@ -111,8 +111,8 @@ class CascadeRCNN(BaseArch):
             bbox, bbox_num = self.bbox_post_process(
                 preds, (refined_rois, rois_num), im_shape, scale_factor)
             # rescale the prediction back to origin image
-            bbox_pred = self.bbox_post_process.get_pred(bbox, bbox_num,
-                                                        im_shape, scale_factor)
+            bbox, bbox_pred, bbox_num = self.bbox_post_process.get_pred(
+                bbox, bbox_num, im_shape, scale_factor)
             if not self.with_mask:
                 return bbox_pred, bbox_num, None
             mask_out = self.mask_head(body_feats, bbox, bbox_num, self.inputs)
diff --git a/ppdet/modeling/architectures/faster_rcnn.py b/ppdet/modeling/architectures/faster_rcnn.py
index 26a2672d60f49aa989c7945b65ce3ecd9beec182..ce9a8e4b57d2dfe54fde037fed2dc0156cb71b51 100644
--- a/ppdet/modeling/architectures/faster_rcnn.py
+++ b/ppdet/modeling/architectures/faster_rcnn.py
@@ -87,8 +87,8 @@ class FasterRCNN(BaseArch):
                                                     im_shape, scale_factor)
 
             # rescale the prediction back to origin image
-            bbox_pred = self.bbox_post_process.get_pred(bbox, bbox_num,
-                                                        im_shape, scale_factor)
+            bboxes, bbox_pred, bbox_num = self.bbox_post_process.get_pred(
+                bbox, bbox_num, im_shape, scale_factor)
             return bbox_pred, bbox_num
 
     def get_loss(self, ):
diff --git a/ppdet/modeling/architectures/mask_rcnn.py b/ppdet/modeling/architectures/mask_rcnn.py
index 43b8bff94aaf6f496d978fe755b55ba79f7786b2..a322f9f8e7b41d47d90b03b594fcdb47665c2c45 100644
--- a/ppdet/modeling/architectures/mask_rcnn.py
+++ b/ppdet/modeling/architectures/mask_rcnn.py
@@ -112,8 +112,8 @@ class MaskRCNN(BaseArch):
                 body_feats, bbox, bbox_num, self.inputs, feat_func=feat_func)
 
             # rescale the prediction back to origin image
-            bbox_pred = self.bbox_post_process.get_pred(bbox, bbox_num,
-                                                        im_shape, scale_factor)
+            bbox, bbox_pred, bbox_num = self.bbox_post_process.get_pred(
+                bbox, bbox_num, im_shape, scale_factor)
             origin_shape = self.bbox_post_process.get_origin_shape()
             mask_pred = self.mask_post_process(mask_out, bbox_pred, bbox_num,
                                                origin_shape)
diff --git a/ppdet/modeling/post_process.py b/ppdet/modeling/post_process.py
index 72e409e4008ea55b4e84a09125a069215a8f34c3..e74095505222142d47c17a0e665d358561558173 100644
--- a/ppdet/modeling/post_process.py
+++ b/ppdet/modeling/post_process.py
@@ -171,7 +171,7 @@ class BBoxPostProcess(nn.Layer):
         pred_label = paddle.where(keep_mask, pred_label,
                                   paddle.ones_like(pred_label) * -1)
         pred_result = paddle.concat([pred_label, pred_score, pred_bbox], axis=1)
-        return pred_result
+        return bboxes, pred_result, bbox_num
 
     def get_origin_shape(self, ):
         return self.origin_shape_list
@@ -179,6 +179,7 @@ class BBoxPostProcess(nn.Layer):
 
 @register
 class MaskPostProcess(object):
+    __shared__ = ['export_onnx']
     """
     refer to:
     https://github.com/facebookresearch/detectron2/layers/mask_ops.py
@@ -186,9 +187,10 @@ class MaskPostProcess(object):
     Get Mask output according to the output from model
     """
 
-    def __init__(self, binary_thresh=0.5):
+    def __init__(self, binary_thresh=0.5, export_onnx=False):
         super(MaskPostProcess, self).__init__()
         self.binary_thresh = binary_thresh
+        self.export_onnx = export_onnx
 
     def paste_mask(self, masks, boxes, im_h, im_w):
         """
@@ -200,6 +202,7 @@ class MaskPostProcess(object):
         N = masks.shape[0]
         img_y = paddle.arange(y0_int, y1_int) + 0.5
         img_x = paddle.arange(x0_int, x1_int) + 0.5
+
         img_y = (img_y - y0) / (y1 - y0) * 2 - 1
         img_x = (img_x - x0) / (x1 - x0) * 2 - 1
         # img_x, img_y have shapes (N, w), (N, h)
@@ -230,15 +233,34 @@ class MaskPostProcess(object):
         """
         num_mask = mask_out.shape[0]
         origin_shape = paddle.cast(origin_shape, 'int32')
-        # TODO: support bs > 1 and mask output dtype is bool
-        pred_result = paddle.zeros(
-            [num_mask, origin_shape[0][0], origin_shape[0][1]], dtype='int32')
-
-        im_h, im_w = origin_shape[0][0], origin_shape[0][1]
-        pred_mask = self.paste_mask(mask_out[:, None, :, :], bboxes[:, 2:],
-                                    im_h, im_w)
-        pred_mask = pred_mask >= self.binary_thresh
-        pred_result = paddle.cast(pred_mask, 'int32')
+
+        if self.export_onnx:
+            h, w = origin_shape[0][0], origin_shape[0][1]
+            mask_onnx = self.paste_mask(mask_out[:, None, :, :], bboxes[:, 2:],
+                                        h, w)
+            mask_onnx = mask_onnx >= self.binary_thresh
+            pred_result = paddle.cast(mask_onnx, 'int32')
+
+        else:
+            max_h = paddle.max(origin_shape[:, 0])
+            max_w = paddle.max(origin_shape[:, 1])
+            pred_result = paddle.zeros(
+                [num_mask, max_h, max_w], dtype='int32') - 1
+
+            id_start = 0
+            for i in range(paddle.shape(bbox_num)[0]):
+                bboxes_i = bboxes[id_start:id_start + bbox_num[i], :]
+                mask_out_i = mask_out[id_start:id_start + bbox_num[i], :, :]
+                im_h = origin_shape[i, 0]
+                im_w = origin_shape[i, 1]
+                bbox_num_i = bbox_num[id_start]
+                pred_mask = self.paste_mask(mask_out_i[:, None, :, :],
+                                            bboxes_i[:, 2:], im_h, im_w)
+                pred_mask = paddle.cast(pred_mask >= self.binary_thresh,
+                                        'int32')
+                pred_result[id_start:id_start + bbox_num[i], :im_h, :
+                            im_w] = pred_mask
+                id_start += bbox_num[i]
 
         return pred_result