diff --git a/tool/conda/README.md b/tool/conda/README.md
new file mode 100644
index 0000000..c3bf637
--- /dev/null
+++ b/tool/conda/README.md
@@ -0,0 +1,72 @@
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+
+# Package SINGA using conda-build
+
+This note is written for the repo maintainer.
+
+To create conda package and upload, you can follow the following steps:
+
+## 1. Build the docker image
+
+To have the build environment, use the dockerfile from https://github.com/apache/singa/blob/dev/tool/conda/docker/cuda10/Dockerfile
+
+For example:
+
+    docker build SINGA_DIR/singa/tool/conda/docker/cpu -t nusdbsystem/singa:conda-cpu
+
+## 2. Build the container from the image and access the container
+
+For example:
+
+    docker run -it -p 2222:22 --runtime nvidia --name singa_conda_cpu --rm nusdbsystem/singa:conda-cpu bash
+
+## 3. Build conda packages
+
+There are three versions of conda package: (i) CPU, (ii) GPU, and (iii) DIST (distributed training)
+
+To build the specific versions, follow the steps: 
+
+(i) cd to the folder tool/conda/singa, follow the instruction in https://github.com/apache/singa/blob/dev/tool/conda/singa/README.md
+
+For example, for CPU version:
+
+    cd tool/conda/singa
+    conda config --add channels conda-forge
+    conda config --add channels nusdbsystem
+    conda-build .  --python 3.6
+    anaconda -t $ANACONDA_UPLOAD_TOKEN upload -u nusdbsystem -l main /root/miniconda/conda-bld/linux-64/singa-3.1.0-cpu_py36.tar.bz2
+
+The above will generate the SINGA package. The next step will be wrapping it to generate SINGA-CPU / SINGA-GPU / SINGA-DIST conda packages.
+
+(ii) For different versions, cd to different folder:
+
+For CPU version, cd to tool/conda/cpu
+For GPU version, cd to tool/conda/gpu
+For DIST version, cd to tool/conda/dist
+
+(iii) Generate the SINGA-CPU / SINGA-GPU / SINGA-DIST anaconda package and upload.
+
+For an example of SINGA-CPU version:
+
+    cd tool/conda/cpu
+    conda-build .  --python 3.6
+    anaconda -t $ANACONDA_UPLOAD_TOKEN upload -u nusdbsystem -l main /root/miniconda/conda-bld/linux-64/singa-cpu-3.1.0-py36.tar.bz2
+
+Since SINGA-CPU, SINGA-GPU and SINGA-DIST packages are wrapped from SINGA package, the steps from (i) to (iii) are necessary.
diff --git a/tool/conda/cpu/README.md b/tool/conda/cpu/README.md
index 566ac09..d201a3a 100644
--- a/tool/conda/cpu/README.md
+++ b/tool/conda/cpu/README.md
@@ -42,7 +42,7 @@
 To build this package and upload it
 
     conda config --add channels nusdbsystem
-    conda build .
+    conda-build .  --python 3.6
     anaconda -t $ANACONDA_UPLOAD_TOKEN upload -u nusdbsystem -l main <path to the singa-cpu package>
 
 where $ANACONDA_UPLOAD_TOKEN is the upload token associated with nusdbsystem account on anaconda cloud.
diff --git a/tool/conda/dist/README.md b/tool/conda/dist/README.md
index 03d7050..b5ba374 100644
--- a/tool/conda/dist/README.md
+++ b/tool/conda/dist/README.md
@@ -45,7 +45,7 @@
 To build this package and upload it
 
     conda config --add channels nusdbsystem
-    conda build .
+    conda-build .  --python 3.6
     anaconda -t $ANACONDA_UPLOAD_TOKEN upload -u nusdbsystem -l main <path to the singa-dist package>
 
 where $ANACONDA_UPLOAD_TOKEN is the upload token associated with nusdbsystem account on anaconda cloud.
diff --git a/tool/conda/docker/cpu/Dockerfile b/tool/conda/docker/cpu/Dockerfile
new file mode 100644
index 0000000..f8e6b30
--- /dev/null
+++ b/tool/conda/docker/cpu/Dockerfile
@@ -0,0 +1,58 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# 18.04 has erros in ssh
+FROM ubuntu:18.04
+
+# install dependencies
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        git \
+        build-essential \
+        cmake \
+        wget \
+        openssh-server \
+        ca-certificates \
+    && apt-get clean \
+    && apt-get autoremove \
+    && apt-get autoclean \
+    && rm -rf /var/lib/apt/lists/* \
+    #
+    # install conda, conda-build and anaconda-client
+    #
+    && wget --no-check-certificate https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh \
+    && bash miniconda.sh -b -p /root/miniconda \
+    && /root/miniconda/bin/conda config --set always_yes yes --set changeps1 no \
+    && /root/miniconda/bin/conda update -q conda \
+    && /root/miniconda/bin/conda install -y \
+        conda-build \
+        anaconda-client \
+    && /root/miniconda/bin/conda clean -tipsy
+
+# config ssh service
+RUN mkdir /var/run/sshd \
+    && echo 'root:singa' | chpasswd \
+    && sed -ri 's/^#?PermitRootLogin\s+.*/PermitRootLogin yes/' /etc/ssh/sshd_config \
+    && sed -ri 's/UsePAM yes/#UsePAM yes/g' /etc/ssh/sshd_config \
+    && mkdir /root/.ssh
+
+# Add conda to PATH. Doing this here so other RUN steps can be grouped above
+ENV PATH /root/miniconda/bin:${PATH}
+
+EXPOSE 22
+
+CMD ["/usr/sbin/sshd", "-D"]
diff --git a/tool/conda/gpu/README.md b/tool/conda/gpu/README.md
index 91be515..e15cd1a 100644
--- a/tool/conda/gpu/README.md
+++ b/tool/conda/gpu/README.md
@@ -44,7 +44,7 @@
 To build this package and upload it
 
     conda config --add channels nusdbsystem
-    conda build .
+    conda-build .  --python 3.6
     anaconda -t $ANACONDA_UPLOAD_TOKEN upload -u nusdbsystem -l main <path to the singa-cpu package>
 
 where $ANACONDA_UPLOAD_TOKEN is the upload token associated with nusdbsystem account on anaconda cloud.