diff --git a/README.md b/README.md
index 85a8d6811fdf05a8a34d38aa361a925af086f58b..780e6b8648ff30f87348997b67b4798966e6f060 100644
--- a/README.md
+++ b/README.md
@@ -80,8 +80,8 @@ DeepSparkHub甄选上百个应用算法和模型，覆盖AI和通用计算各领
 [DPN107](cv/classification/dpn107/pytorch/README.md)  | PyTorch | ImageNet
 [ECA-MobileNetV2](cv/classification/eca_mobilenet_v2/pytorch/README.md)  | PyTorch | ImageNet
 [ECA-ResNet152](cv/classification/eca_resnet152/pytorch/README.md)  | PyTorch | ImageNet
-[Efficientb4](cv/classification/efficientb4/pytorch/README.md)  | PyTorch | ImageNet
 [EfficientNetB0](cv/classification/efficientnet_b0/paddlepaddle/README.md)  | PaddlePaddle | ImageNet
+[EfficientNetB4](cv/classification/efficientnet_b4/pytorch/README.md)  | PyTorch | ImageNet
 [FasterNet](cv/classification/fasternet/pytorch/README.md)  | PyTorch | ImageNet
 [GoogLeNet](cv/classification/googlenet/pytorch/README.md)  | PyTorch | ImageNet
 [GoogLeNet](cv/classification/googlenet/paddlepaddle/README.md)  | PaddlePaddle | ImageNet
diff --git a/cv/classification/efficientb4/pytorch/.gitignore b/cv/classification/efficientnet_b4/pytorch/.gitignore
similarity index 100%
rename from cv/classification/efficientb4/pytorch/.gitignore
rename to cv/classification/efficientnet_b4/pytorch/.gitignore
diff --git a/cv/classification/efficientb4/pytorch/README.md b/cv/classification/efficientnet_b4/pytorch/README.md
similarity index 91%
rename from cv/classification/efficientb4/pytorch/README.md
rename to cv/classification/efficientnet_b4/pytorch/README.md
index 7ac065b8f620ca9a7c25eb340fc6e0774f74bba3..aa4c4c9cf57c7b1058d08b337fcae6be32cfa891 100755
--- a/cv/classification/efficientb4/pytorch/README.md
+++ b/cv/classification/efficientnet_b4/pytorch/README.md
@@ -1,7 +1,11 @@
-# efficientb4
+# EfficientNetB4
+
 ## Model description
+
 EfficientNet is a convolutional neural network architecture and scaling method that uniformly scales all dimensions of depth/width/resolution using a compound coefficient.
+
 ## Step 1: Installing
+
 ```bash
 pip3 install torch torchvision
 ```
@@ -24,16 +28,20 @@ imagenet
 └── val_list.txt
 ```
 
-
 ## Step 2: Training
+
 ### One single GPU
+
 ```bash
 python3 train.py --data-path /path/to/imagenet --model efficientnet_b4 --batch-size 128
 ```
+
 ### Multiple GPUs on one machine
+
 ```bash
 python3 -m torch.distributed.launch --nproc_per_node=8 --use_env train.py --data-path /path/to/imagenet --model efficientnet_b4 --batch-size 128
 ```
 
 ## Reference
-https://github.com/pytorch/vision/blob/main/torchvision/models/efficientnet.py
+
+<https://github.com/pytorch/vision/blob/main/torchvision/models/efficientnet.py>
diff --git a/cv/classification/efficientb4/pytorch/__init__.py b/cv/classification/efficientnet_b4/pytorch/__init__.py
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rename from cv/classification/efficientb4/pytorch/__init__.py
rename to cv/classification/efficientnet_b4/pytorch/__init__.py
diff --git a/cv/classification/efficientb4/pytorch/common_utils/__init__.py b/cv/classification/efficientnet_b4/pytorch/common_utils/__init__.py
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rename from cv/classification/efficientb4/pytorch/common_utils/__init__.py
rename to cv/classification/efficientnet_b4/pytorch/common_utils/__init__.py
diff --git a/cv/classification/efficientb4/pytorch/common_utils/dist.py b/cv/classification/efficientnet_b4/pytorch/common_utils/dist.py
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rename to cv/classification/efficientnet_b4/pytorch/common_utils/dist.py
diff --git a/cv/classification/efficientb4/pytorch/common_utils/loss.py b/cv/classification/efficientnet_b4/pytorch/common_utils/loss.py
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rename from cv/classification/efficientb4/pytorch/common_utils/loss.py
rename to cv/classification/efficientnet_b4/pytorch/common_utils/loss.py
diff --git a/cv/classification/efficientb4/pytorch/common_utils/metric_logger.py b/cv/classification/efficientnet_b4/pytorch/common_utils/metric_logger.py
similarity index 100%
rename from cv/classification/efficientb4/pytorch/common_utils/metric_logger.py
rename to cv/classification/efficientnet_b4/pytorch/common_utils/metric_logger.py
diff --git a/cv/classification/efficientb4/pytorch/common_utils/misc.py b/cv/classification/efficientnet_b4/pytorch/common_utils/misc.py
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rename from cv/classification/efficientb4/pytorch/common_utils/misc.py
rename to cv/classification/efficientnet_b4/pytorch/common_utils/misc.py
diff --git a/cv/classification/efficientb4/pytorch/common_utils/smooth_value.py b/cv/classification/efficientnet_b4/pytorch/common_utils/smooth_value.py
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rename from cv/classification/efficientb4/pytorch/common_utils/smooth_value.py
rename to cv/classification/efficientnet_b4/pytorch/common_utils/smooth_value.py
diff --git a/cv/classification/efficientb4/pytorch/dataloader/__init__.py b/cv/classification/efficientnet_b4/pytorch/dataloader/__init__.py
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diff --git a/cv/classification/efficientb4/pytorch/dataloader/classification.py b/cv/classification/efficientnet_b4/pytorch/dataloader/classification.py
similarity index 100%
rename from cv/classification/efficientb4/pytorch/dataloader/classification.py
rename to cv/classification/efficientnet_b4/pytorch/dataloader/classification.py
diff --git a/cv/classification/efficientb4/pytorch/dataloader/dali_classification.py b/cv/classification/efficientnet_b4/pytorch/dataloader/dali_classification.py
similarity index 100%
rename from cv/classification/efficientb4/pytorch/dataloader/dali_classification.py
rename to cv/classification/efficientnet_b4/pytorch/dataloader/dali_classification.py
diff --git a/cv/classification/efficientb4/pytorch/dataloader/utils/__init__.py b/cv/classification/efficientnet_b4/pytorch/dataloader/utils/__init__.py
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diff --git a/cv/classification/efficientb4/pytorch/dataloader/utils/presets_classification.py b/cv/classification/efficientnet_b4/pytorch/dataloader/utils/presets_classification.py
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rename from cv/classification/efficientb4/pytorch/dataloader/utils/presets_classification.py
rename to cv/classification/efficientnet_b4/pytorch/dataloader/utils/presets_classification.py
diff --git a/cv/classification/efficientb4/pytorch/train.py b/cv/classification/efficientnet_b4/pytorch/train.py
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rename from cv/classification/efficientb4/pytorch/train.py
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diff --git a/cv/classification/efficientb4/pytorch/utils.py b/cv/classification/efficientnet_b4/pytorch/utils.py
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