diff --git a/doc/train/train-input.rst b/doc/train/train-input.rst
index 612cdf3cfa..2e3fe83d4b 100644
--- a/doc/train/train-input.rst
+++ b/doc/train/train-input.rst
@@ -1,3 +1,6 @@
 Training Parameters
 ======================================
+.. note::
+   One can load, modify, and export the input file by using our effective web-based tool `DP-GUI <https://deepmodeling.org/dpgui/input/deepmd-kit-2.0>`_. All training parameters below can be set in DP-GUI. By clicking "SAVE JSON", one can download the input file for furthur training.
+
 .. include:: ../train-input-auto.rst