diff --git a/README.md b/README.md
index de20dd796..1e3191598 100644
--- a/README.md
+++ b/README.md
@@ -396,7 +396,8 @@ the right to use your contribution. For details, visit https://cla.opensource.mi
 
 When you submit a pull request, a CLA bot will automatically determine whether you need to provide
 a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions
-provided by the bot. You will only need to do this once across all repos using our CLA.
+provided by the bot. You will only need to do this once across all repos using our CLA. Here are some 
+[code standards](docs/developer/code_standard.rst) when you submit a pull request.
 
 This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
 For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
diff --git a/docs/developer/code_standard.rst b/docs/developer/code_standard.rst
new file mode 100644
index 000000000..23ea713ba
--- /dev/null
+++ b/docs/developer/code_standard.rst
@@ -0,0 +1,20 @@
+.. _code_standard:
+
+=================================
+Code Standard
+=================================
+
+Docstring
+=================================
+Please use the Numpy Style.
+
+Continuous Integration
+=================================
+Continuous Integration (CI) tools help you stick to the quality standards by running tests every time you push a new commit and reporting the results to a pull request. 
+
+A common error is the mixed use of space and tab. You can fix the bug by inputing the following code in the command line.
+
+.. code-block:: python
+
+    pip install black
+    python -m black . -l 120
\ No newline at end of file