diff --git a/docker/ubuntu20-gpu/Dockerfile b/docker/ubuntu20-gpu/Dockerfile
deleted file mode 100644
index 447b1a570..000000000
--- a/docker/ubuntu20-gpu/Dockerfile
+++ /dev/null
@@ -1,17 +0,0 @@
-FROM registry.baidubce.com/paddlepaddle/paddle:3.0.0b1
-LABEL maintainer="ext_paddle_oss@baidu.com"
-
-RUN apt-get update \
-  && apt-get install libsndfile-dev libsndfile1 -y \
-  && apt-get clean -y \
-  && rm -rf /var/lib/apt/lists/*
-
-RUN git clone --depth 1 https://github.com/PaddlePaddle/PaddleSpeech.git /home/PaddleSpeech  
-RUN pip3 uninstall mccabe -y ; exit 0;
-RUN pip3 install multiprocess==0.70.12 importlib-metadata==4.2.0 dill==0.3.4
-
-WORKDIR /home/PaddleSpeech/
-RUN python setup.py bdist_wheel
-RUN pip install dist/*.whl -i https://pypi.tuna.tsinghua.edu.cn/simple
-
-CMD ['bash']