diff --git a/documentation/source/definitions.rst b/documentation/source/definitions.rst
index b8fc6ca76023ab339e27a59a7e52164a817152e4..ab9ac1dabcbdc995fb6af955ebe51455eab100a8 100644
--- a/documentation/source/definitions.rst
+++ b/documentation/source/definitions.rst
@@ -1,4 +1,4 @@
 .. |main_project_name| replace:: OpenHarmony
 .. |main_project_name_bold| replace:: **openharmony**
 .. |main_project_tag| replace:: openharmony
-
+.. |contact_info| replace:: contact@openharmony.io
diff --git a/documentation/source/readme/Code of Conduct.rst b/documentation/source/readme/Code of Conduct.rst
index 2a2b5301c55b2a2fefe2e7a9a8a68d3315b30cba..d5802c9a342f8182e0b49e5e9615fa50f40e1337 100644
--- a/documentation/source/readme/Code of Conduct.rst	
+++ b/documentation/source/readme/Code of Conduct.rst	
@@ -5,7 +5,7 @@ Code of Conduct
 
 The OpenHarmony community complies with the code of conduct specified in `Contributor Covenant <https://www.contributor-covenant.org/>`_. of the open source community. For details, see https://www.contributor-covenant.org/version/1/4/code-of-conduct/
 
-To report insults, harassment, or other unacceptable behavior, you can contact the OpenHarmony technical committee at contact@openharmony.io.
+To report insults, harassment, or other unacceptable behavior, you can contact the OpenHarmony technical committee at |contact_info|.
 
 Our Pledge
 **********
@@ -58,7 +58,7 @@ Representation of a project may be further defined and clarified by project main
 Implementation
 **************
 
-Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at contact@openharmony.io.
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at |contact_info|.
 
 All complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
 
diff --git a/documentation/source/readme/Communication in Community.rst b/documentation/source/readme/Communication in Community.rst
index 0f75f8c1d733f1903eafdb3600546511b1bb1f2c..76691e62de669c0207372b7bb1512eb688cfe5c5 100644
--- a/documentation/source/readme/Communication in Community.rst	
+++ b/documentation/source/readme/Communication in Community.rst	
@@ -23,7 +23,7 @@ If you have never subscribed to a mail list before, follow the steps below:
 ======================= ============================= ================================================================================================
 Email Address           Introduction                  Description
 ======================= ============================= ================================================================================================
-contact@openharmony.io  Public Mailbox                Public mailbox of the OpenHarmony community. 
+|contact_info|  Public Mailbox                Public mailbox of the OpenHarmony community. 
                                                       You can send emails to this mailbox to sign the Contributor License Agreement (CLA).
 dev@openharmony.io      Development mail list         OpenHarmony community development discussion group. 
                                                       Any topics related to community development  can be discussed here. Any one can `subscribe <https://lists.openatom.io/postorius/lists/dev.openharmony.io/>`_ to it.