diff --git a/documentation/source/index.rst b/documentation/source/index.rst
index bd1690c80466711f8201c6671a973a6f5643a34e..a4c5e5e4725eefe0c091b0bc4615f9acae8ac9ad 100644
--- a/documentation/source/index.rst
+++ b/documentation/source/index.rst
@@ -1,14 +1,9 @@
 Welcome to OHOS's documentation!
 ================================
 
+OpenHarmony is an open-source project launched by the OpenAtom Foundation and serves as an open-source, distributed operating system (OS) that is intended to address all conceivable usage scenarios. OpenHarmony is an open-source version of HarmonyOS. HarmonyOS is a future-proof distributed operating system open to you as part of the initiatives for the all-scenario strategy, adaptable to a mobile office, fitness and health, social communication, and media entertainment, and so on. Unlike a legacy operating system that runs on a standalone device, HarmonyOS is built on a distributed architecture designed based on a set of system capabilities. It is able to run on a wide range of device forms, including smartphones, wearables, tablets, PCs, smart TVs, AI speakers, head units, earphones, and AR/VR glasses.
+
 .. toctree::
    :maxdepth: 1
    :caption: Contents:
 
-
-
-Indices and tables
-==================
-
-* :ref:`modindex`
-* :ref:`search`