diff --git a/configs/slim/ofa/ofa_picodet_demo.yml b/configs/slim/ofa/ofa_picodet_demo.yml
index b770918c85c6dbf13e267977e4b18961149ad079..a5ade9e3168bb0e6ecb68fabc47d98d789d4ae7d 100644
--- a/configs/slim/ofa/ofa_picodet_demo.yml
+++ b/configs/slim/ofa/ofa_picodet_demo.yml
@@ -23,7 +23,7 @@ OFA:
                        'backbone.4_1._conv_pw_mv1._conv', 'backbone.4_2._conv_linear._conv',
                        'backbone.4_3._conv_linear._conv']
 
-        # For block-wise search, make layers in each block in the same search sapce
+        # For block-wise search, make layers in each block in the same search space
         same_search_space: [
                 ['backbone.2_1._conv_dw_1._conv', 'backbone.2_1._conv_pw_2._conv',
                  'backbone.2_1._conv_dw_2._conv', 'backbone.2_1._se.conv1', 'backbone.2_1._se.conv2'],
diff --git a/configs/sniper/README.md b/configs/sniper/README.md
index 8a9e2e77b4247a6ab4b89683b511fd86a7a7dd16..3aadee560ee6d7cd3691075db016a94fec7e0ea3 100644
--- a/configs/sniper/README.md
+++ b/configs/sniper/README.md
@@ -10,8 +10,8 @@ English | [简体中文](README_cn.md)
 | w/ |    4    |    1    | ResNet-r50-FPN      | [VisDrone](https://github.com/VisDrone/VisDrone-Dataset)   |   1x    |  29.7  | [Download Link](https://bj.bcebos.com/v1/paddledet/models/faster_rcnn_r50_fpn_1x_sniper_visdrone.pdparams) | [config](./faster_rcnn_r50_fpn_1x_sniper_visdrone.yml) |
 
 ### Note
-- Here, we use VisDrone dataset, and to detect 9 objects including `person, bicycles, car, van, truck, tricyle, awning-tricyle, bus, motor`.
-- Do not support deploy by now because sniper dataset crop behavor.
+- Here, we use VisDrone dataset, and to detect 9 objects including `person, bicycles, car, van, truck, tricycle, awning-tricycle, bus, motor`.
+- Do not support deploy by now because sniper dataset crop behavior.
 
 ## Getting Start
 ### 1. Training
@@ -19,7 +19,7 @@ a. optional: Run `tools/sniper_params_stats.py` to get image_target_sizes\valid_
 ```bash
 python tools/sniper_params_stats.py FasterRCNN annotations/instances_train2017.json
 ```
-b. optional: trian detector to get negative proposals.
+b. optional: train detector to get negative proposals.
 ```bash
 python -m paddle.distributed.launch --log_dir=./sniper/ --gpus 0,1,2,3,4,5,6,7 tools/train.py -c configs/sniper/faster_rcnn_r50_fpn_1x_sniper_visdrone.yml --save_proposals --proposals_path=./proposals.json &>sniper.log 2>&1 &
 ```
diff --git a/configs/ssd/_base_/ssd_vgg16_300.yml b/configs/ssd/_base_/ssd_vgg16_300.yml
index 59821054d9ba3005f6e75b3da38255c1fba187f1..8d322d9c1f8646a40d5256180546af63eea8a8fb 100644
--- a/configs/ssd/_base_/ssd_vgg16_300.yml
+++ b/configs/ssd/_base_/ssd_vgg16_300.yml
@@ -1,7 +1,7 @@
 architecture: SSD
 pretrain_weights: https://paddledet.bj.bcebos.com/models/pretrained/VGG16_caffe_pretrained.pdparams
 
-# Model Achitecture
+# Model Architecture
 SSD:
   # model feat info flow
   backbone: VGG
diff --git a/dataset/coco/download_coco.py b/dataset/coco/download_coco.py
index 47659fa76dd2c1183404667efac3a48de9b099c2..993218fff32b9d78eab43e4a37264b031338f496 100644
--- a/dataset/coco/download_coco.py
+++ b/dataset/coco/download_coco.py
@@ -15,7 +15,7 @@
 import sys
 import os.path as osp
 import logging
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = osp.abspath(osp.join(__file__, *(['..'] * 3)))
 if parent_path not in sys.path:
     sys.path.append(parent_path)
diff --git a/dataset/roadsign_voc/download_roadsign_voc.py b/dataset/roadsign_voc/download_roadsign_voc.py
index 3cb517d3cf362e3ad2ec7b4ebf3bff54acb244d4..7d8ef2252f3d8b91f9c0c30e6be5ad186a00c18f 100644
--- a/dataset/roadsign_voc/download_roadsign_voc.py
+++ b/dataset/roadsign_voc/download_roadsign_voc.py
@@ -15,7 +15,7 @@
 import sys
 import os.path as osp
 import logging
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = osp.abspath(osp.join(__file__, *(['..'] * 3)))
 if parent_path not in sys.path:
     sys.path.append(parent_path)
diff --git a/dataset/spine_coco/download_spine_coco.py b/dataset/spine_coco/download_spine_coco.py
index 77d63391c3258f0917a8c4ee5c364307efcfab3a..2b23dd6387b66a9e42f26b59e5fe6fea7bf81d7d 100644
--- a/dataset/spine_coco/download_spine_coco.py
+++ b/dataset/spine_coco/download_spine_coco.py
@@ -15,7 +15,7 @@
 import sys
 import os.path as osp
 import logging
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = osp.abspath(osp.join(__file__, *(['..'] * 3)))
 if parent_path not in sys.path:
     sys.path.append(parent_path)
diff --git a/dataset/voc/create_list.py b/dataset/voc/create_list.py
index 5ab804222aa14cce988fd0aa083a460372afb484..7696073448d1dc65e1e0e20919048b69658d5ea1 100644
--- a/dataset/voc/create_list.py
+++ b/dataset/voc/create_list.py
@@ -15,7 +15,7 @@
 import sys
 import os.path as osp
 import logging
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = osp.abspath(osp.join(__file__, *(['..'] * 3)))
 if parent_path not in sys.path:
     sys.path.append(parent_path)
diff --git a/dataset/voc/download_voc.py b/dataset/voc/download_voc.py
index e4c449ce207f27f07379a1e93cebcb27ace0b8fe..2375fbf3c17c6424763ea5323f4a470f30eff3df 100644
--- a/dataset/voc/download_voc.py
+++ b/dataset/voc/download_voc.py
@@ -15,7 +15,7 @@
 import sys
 import os.path as osp
 import logging
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = osp.abspath(osp.join(__file__, *(['..'] * 3)))
 if parent_path not in sys.path:
     sys.path.append(parent_path)
diff --git a/deploy/benchmark/log_parser_excel.py b/deploy/benchmark/log_parser_excel.py
index 2375e9634ed1c39c2ca6727422b8ace56a9b3262..317b3759572c6acef3438fbc654bc5918e8bdd38 100644
--- a/deploy/benchmark/log_parser_excel.py
+++ b/deploy/benchmark/log_parser_excel.py
@@ -195,7 +195,7 @@ def trt_perf_analysis(raw_df):
     gpu_df = raw_df.loc[raw_df['runtime_device'] == 'gpu']
     new_df = filter_df_merge(gpu_df, "precision")
 
-    # calculate qps diff percentail
+    # calculate qps diff percentile
     infer_fp32 = "inference_time(ms)_precision_fp32"
     infer_fp16 = "inference_time(ms)_precision_fp16"
     infer_int8 = "inference_time(ms)_precision_int8"
@@ -228,7 +228,7 @@ def mkl_perf_analysis(raw_df):
     output_thread_df = filter_df_merge(thread_compare_df,
                                        'cpu_math_library_num_threads')
 
-    # calculate performance diff percentail
+    # calculate performance diff percentile
     # compare mkl performance with cpu
     enable_mkldnn = "inference_time(ms)_enable_mkldnn_True"
     disable_mkldnn = "inference_time(ms)_enable_mkldnn_False"
diff --git a/deploy/cpp/docs/windows_vs2019_build.md b/deploy/cpp/docs/windows_vs2019_build.md
index 9fbfcf2048916635ac2ed98a73849db97df36aa3..1a23cabc7bf640ed548942012354013f500d6be2 100755
--- a/deploy/cpp/docs/windows_vs2019_build.md
+++ b/deploy/cpp/docs/windows_vs2019_build.md
@@ -5,7 +5,7 @@ Windows 平台下，我们使用`Visual Studio 2019 Community` 进行了测试
 
 ## 前置条件
 * Visual Studio 2019 (根据Paddle预测库所使用的VS版本选择，请参考 [Visual Studio 不同版本二进制兼容性](https://docs.microsoft.com/zh-cn/cpp/porting/binary-compat-2015-2017?view=vs-2019) )
-* CUDA 9.0 / CUDA 10.0，cudnn 7+ / TensoRT（仅在使用GPU版本的预测库时需要）
+* CUDA 9.0 / CUDA 10.0，cudnn 7+ / TensorRT（仅在使用GPU版本的预测库时需要）
 * CMake 3.0+ [CMake下载](https://cmake.org/download/)
 
 **特别注意：windows下预测库需要的TensorRT版本为：**。
diff --git a/deploy/cpp/src/keypoint_detector.cc b/deploy/cpp/src/keypoint_detector.cc
index 18af79e31967ad9636d230e96fbd1aa97b6323b1..b0ee884566749c5ab459d8ec76aa98ae4e1d1f3c 100644
--- a/deploy/cpp/src/keypoint_detector.cc
+++ b/deploy/cpp/src/keypoint_detector.cc
@@ -95,7 +95,7 @@ void KeyPointDetector::LoadModel(const std::string& model_dir,
   predictor_ = std::move(CreatePredictor(config));
 }
 
-// Visualiztion MaskDetector results
+// Visualization MaskDetector results
 cv::Mat VisualizeKptsResult(const cv::Mat& img,
                             const std::vector<KeyPointResult>& results,
                             const std::vector<int>& colormap) {
diff --git a/deploy/pipeline/pipeline.py b/deploy/pipeline/pipeline.py
index 80af8c5217179e3d730ee03272d26f07dcef732b..04fcfc28be29fa762122116b7c0c983ac5947688 100644
--- a/deploy/pipeline/pipeline.py
+++ b/deploy/pipeline/pipeline.py
@@ -27,7 +27,7 @@ import time
 from collections import Sequence, defaultdict
 from datacollector import DataCollector, Result
 
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/deploy/pipeline/pphuman/action_infer.py b/deploy/pipeline/pphuman/action_infer.py
index 3e2f397cfc51edb50b6711f0e73ad6caf6e33ca7..b04bd3f881bae8cf70434dd49bb3686d3b14c410 100644
--- a/deploy/pipeline/pphuman/action_infer.py
+++ b/deploy/pipeline/pphuman/action_infer.py
@@ -23,7 +23,7 @@ import paddle
 import sys
 from collections import Sequence
 
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/deploy/pipeline/pphuman/attr_infer.py b/deploy/pipeline/pphuman/attr_infer.py
index 40ccad05f82b635b16e1e562315bcb6c0755975d..bf9e80bec402d3a64016b7b93edbce40474603d5 100644
--- a/deploy/pipeline/pphuman/attr_infer.py
+++ b/deploy/pipeline/pphuman/attr_infer.py
@@ -25,7 +25,7 @@ from paddle.inference import Config
 from paddle.inference import create_predictor
 
 import sys
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'])))
 sys.path.insert(0, parent_path)
 
diff --git a/deploy/pipeline/pphuman/mtmct.py b/deploy/pipeline/pphuman/mtmct.py
index bb45432a0e544b8aff658ca5eb2d2b60d7d7aef3..f7ff199f94bdb0b973797aabe8d24d4e603bba99 100644
--- a/deploy/pipeline/pphuman/mtmct.py
+++ b/deploy/pipeline/pphuman/mtmct.py
@@ -202,7 +202,7 @@ def get_cosine(x, y, eps=1e-12):
     Computes cosine distance between two tensors.
     The cosine distance is the inverse cosine similarity
     -> cosine_distance = abs(-cosine_distance) to make it
-    similar in behaviour to euclidean distance
+    similar in behavior to euclidean distance
     """
     sim_mt = cosine_similarity(x, y, eps)
     return sim_mt
diff --git a/deploy/pipeline/pphuman/reid.py b/deploy/pipeline/pphuman/reid.py
index c20ede3f44f5e9492118eaf2b3deef4d29fec0a3..21b725ce4c7a587652a54176451841ff97d2bd8d 100644
--- a/deploy/pipeline/pphuman/reid.py
+++ b/deploy/pipeline/pphuman/reid.py
@@ -16,7 +16,7 @@ import os
 import sys
 import cv2
 import numpy as np
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/deploy/pipeline/pphuman/video_action_infer.py b/deploy/pipeline/pphuman/video_action_infer.py
index aecaa76960746edf0e99f4c10f5423373a641af8..e5e6c10eccd32aabb992393e24cd02362b4d493c 100644
--- a/deploy/pipeline/pphuman/video_action_infer.py
+++ b/deploy/pipeline/pphuman/video_action_infer.py
@@ -24,7 +24,7 @@ import sys
 from collections import Sequence
 import paddle.nn.functional as F
 
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/deploy/pipeline/ppvehicle/vehicle_attr.py b/deploy/pipeline/ppvehicle/vehicle_attr.py
index 9e20d95cac67bfbaee5b7246ab3fd4c135613e15..4f7923f61e3aae73ece20c2125e5bd39d723e554 100644
--- a/deploy/pipeline/ppvehicle/vehicle_attr.py
+++ b/deploy/pipeline/ppvehicle/vehicle_attr.py
@@ -23,7 +23,7 @@ import paddle
 import sys
 from collections import Sequence
 
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 3)))
 sys.path.insert(0, parent_path)
 
diff --git a/deploy/pptracking/python/det_infer.py b/deploy/pptracking/python/det_infer.py
index cf99f0d70ac6c3f3989ea38a529197ff29fd23d8..3dec3e6d6353b324270feaeeb4cd37fbd055e972 100644
--- a/deploy/pptracking/python/det_infer.py
+++ b/deploy/pptracking/python/det_infer.py
@@ -26,7 +26,7 @@ from paddle.inference import Config
 from paddle.inference import create_predictor
 
 import sys
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'])))
 sys.path.insert(0, parent_path)
 
diff --git a/deploy/python/infer.py b/deploy/python/infer.py
index df206f22b59a796a59b44a0b3e8489c2d89e339b..e86761abc55cc78880f0b5f95eabfdf231691547 100644
--- a/deploy/python/infer.py
+++ b/deploy/python/infer.py
@@ -27,7 +27,7 @@ from paddle.inference import Config
 from paddle.inference import create_predictor
 
 import sys
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'])))
 sys.path.insert(0, parent_path)
 
diff --git a/deploy/python/keypoint_infer.py b/deploy/python/keypoint_infer.py
index 70b81375621bdd49ec916f246d90f5d5a243aa33..52e12fda74fdac95d33c95eea3de062ce43ee774 100644
--- a/deploy/python/keypoint_infer.py
+++ b/deploy/python/keypoint_infer.py
@@ -25,7 +25,7 @@ import numpy as np
 import paddle
 
 import sys
-# add deploy path of PadleDetection to sys.path
+# add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'])))
 sys.path.insert(0, parent_path)
 
diff --git a/ppdet/modeling/tests/test_ops.py b/ppdet/modeling/tests/test_ops.py
index 3614d5b9c232ae9c1ce37b158a502b3349473cb4..4827be5a7bc1fe33d5d736a0fb546bd993c7e059 100644
--- a/ppdet/modeling/tests/test_ops.py
+++ b/ppdet/modeling/tests/test_ops.py
@@ -14,7 +14,7 @@
 
 from __future__ import print_function
 import os, sys
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 4)))
 if parent_path not in sys.path:
     sys.path.append(parent_path)
diff --git a/ppdet/modeling/tests/test_yolov3_loss.py b/ppdet/modeling/tests/test_yolov3_loss.py
index e3c1c403b3690053440a8e88405f4313be08a765..0ad1c8e803ef2c6faedf3aab3049c26949fed003 100644
--- a/ppdet/modeling/tests/test_yolov3_loss.py
+++ b/ppdet/modeling/tests/test_yolov3_loss.py
@@ -18,7 +18,7 @@ import unittest
 
 import paddle
 import paddle.nn.functional as F
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 import os
 import sys
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 4)))
diff --git a/ppdet/modeling/transformers/ext_op/test_ms_deformable_attn_op.py b/ppdet/modeling/transformers/ext_op/test_ms_deformable_attn_op.py
index 67476fac40be08d0ef189dbc6deacb10c664cf82..94a05737cbcd6deef55b10f73d39dbd46beeebf7 100644
--- a/ppdet/modeling/transformers/ext_op/test_ms_deformable_attn_op.py
+++ b/ppdet/modeling/transformers/ext_op/test_ms_deformable_attn_op.py
@@ -21,7 +21,7 @@ import sys
 import random
 import numpy as np
 import paddle
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 5)))
 if parent_path not in sys.path:
     sys.path.append(parent_path)
diff --git a/tools/anchor_cluster.py b/tools/anchor_cluster.py
index adfd869f0fbd1cbbadb0d15aac7ce3c97ec9b373..e892d403090e6569e16d9548c00841368b427793 100644
--- a/tools/anchor_cluster.py
+++ b/tools/anchor_cluster.py
@@ -18,7 +18,7 @@ from __future__ import print_function
 
 import os
 import sys
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/tools/eval.py b/tools/eval.py
index fc4b95b90e90b883f753c7f3e4965b2f04e9f3be..384a497906bc436a9bd20a5d0cb3165dc4af4f3b 100755
--- a/tools/eval.py
+++ b/tools/eval.py
@@ -19,7 +19,7 @@ from __future__ import print_function
 import os
 import sys
 
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/tools/eval_mot.py b/tools/eval_mot.py
index 9f09533a29f111cbe2fff1922a4eba99ec0fad57..b88d0c4a1dec6b368f9753a0b4fa2b319210c87c 100644
--- a/tools/eval_mot.py
+++ b/tools/eval_mot.py
@@ -19,7 +19,7 @@ from __future__ import print_function
 import os
 import sys
 
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/tools/export_model.py b/tools/export_model.py
index b239060eb57753ec9d1f83dc3061c90fb46d5191..20cfcfaa57289f09ed216a912f0a4bccbceacce0 100644
--- a/tools/export_model.py
+++ b/tools/export_model.py
@@ -19,7 +19,7 @@ from __future__ import print_function
 import os
 import sys
 
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/tools/infer.py b/tools/infer.py
index 2b92d7ba12bbcb5148d0ba9a668c1f7fd7d7ce47..65fb3b7253cd214ad757f3e62a1380b8218a92b0 100755
--- a/tools/infer.py
+++ b/tools/infer.py
@@ -19,7 +19,7 @@ from __future__ import print_function
 import os
 import sys
 
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/tools/infer_mot.py b/tools/infer_mot.py
index c93c47b63d883fab88a1144c922555f51c503e2d..547857beaaf7b1cd2246a80d859d4be053ef6404 100644
--- a/tools/infer_mot.py
+++ b/tools/infer_mot.py
@@ -19,7 +19,7 @@ from __future__ import print_function
 import os
 import sys
 
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/tools/post_quant.py b/tools/post_quant.py
index 0c3404007e7932280b2761e5aa53f66e628e25bd..60acaccc87f5be7256f492a2dd8efa439e888d57 100644
--- a/tools/post_quant.py
+++ b/tools/post_quant.py
@@ -19,7 +19,7 @@ from __future__ import print_function
 import os
 import sys
 
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)
 
diff --git a/tools/train.py b/tools/train.py
index 6604495a2b5c91e0c6257653f617a23d21c4e5e0..ec846519e997f0a70183f1972aa3120555a0f446 100755
--- a/tools/train.py
+++ b/tools/train.py
@@ -19,7 +19,7 @@ from __future__ import print_function
 import os
 import sys
 
-# add python path of PadleDetection to sys.path
+# add python path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
 sys.path.insert(0, parent_path)