diff --git a/conf.py b/conf.py
index 6aa5e7835f31503bb45359673a0367b3a5a0f158..ae5d978d43c467af6603ec10cf1936b13e1eee79 100644
--- a/conf.py
+++ b/conf.py
@@ -48,7 +48,8 @@ language = 'en'
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 # This pattern also affects html_static_path and html_extra_path.
-exclude_patterns = ['README.rst', 'contributing/project.rst', 'experimental']
+exclude_patterns = ['README.rst', 'contributing/project.rst', 'experimental', 
+                     'oniro/index.rst']
 
 
 # -- Options for HTML output -------------------------------------------------
diff --git a/index.rst b/index.rst
index eaa6282306c5353c5cacde39095bb33d3f14042d..6af2a20c05a2fe978f0b74ef2591a91a4a0dd6b0 100644
--- a/index.rst
+++ b/index.rst
@@ -35,16 +35,72 @@ will be flexible enough to target a wide range of devices that accompany users'
 daily life.
 
 .. toctree::
+   :caption: Introduction
+   :maxdepth: 2
+   
+   overview/oniroproject-vision
+ 
+.. toctree::
+   :caption: Quick Start
+   :maxdepth: 2
+
+   oniro/oniro-quick-build
+
+.. toctree::
+   :caption: Oniro Project Blueprints
    :maxdepth: 2
 
-   overview/index
-   oniro/index
    Oniro Project Blueprints <https://docs.oniroproject.org/projects/blueprints>
+   
+.. toctree::
+   :caption: Build System Guide
+   :maxdepth: 2
+
+   Overview <oniro/yocto-build-system/index>
+   Creating Workspace <oniro/repo-workspace>
+   oniro/build-flavours/index
+   oniro/oniro-build/index
+   oniro/os/index
+   oniro/ci/index
+   oniro/supported-images
+   oniro/hardware-support/index
+   building-project-documentation
+
+.. toctree::
+   :caption: Supported Technologies
+   :maxdepth: 2
+
+   oniro/supported-technologies/openthread
+
+.. toctree::
+   :caption: Troubleshoot
+   :maxdepth: 2
+
+   oniro/fallback-devices-support 
+
+.. toctree::
+   :caption: Contribute
+   :maxdepth: 2
+
    contributing/index
    ci/index
-   building-project-documentation
-   ip-policy/index
-   security/index
+
+.. toctree::
+   :caption: Community
+   :maxdepth: 2
+
    code-of-conduct
    community-chat-platform
+   
+.. toctree::
+   :caption: Policies and Compliance
+   :maxdepth: 2
+   
+   ip-policy/index
+   security/index
+   
+.. toctree::
+   :caption: Releases
+   :maxdepth: 2
+   
    releases/index
diff --git a/overview/index.rst b/overview/index.rst
deleted file mode 100644
index efe09c5456296a03f099db119067253865dc87ae..0000000000000000000000000000000000000000
--- a/overview/index.rst
+++ /dev/null
@@ -1,13 +0,0 @@
-.. SPDX-FileCopyrightText: Huawei Inc.
-..
-.. SPDX-License-Identifier: CC-BY-4.0
-
-.. include:: ../definitions.rst
-
-|main_project_name| Overview 
-###############################
-
-.. toctree::
-   :maxdepth: 2
-   
-   oniroproject-vision