diff --git a/source/CaseStudies/LiCl_fusant/LiCl_fusant.md b/source/CaseStudies/LiCl_fusant/LiCl_fusant.md
new file mode 100644
index 0000000..4c95fb4
--- /dev/null
+++ b/source/CaseStudies/LiCl_fusant/LiCl_fusant.md
@@ -0,0 +1,5 @@
+# LiCl_fusant
+
+
+
+## Introdution
diff --git a/source/CaseStudies/LiCl_fusant/index.rst b/source/CaseStudies/LiCl_fusant/index.rst
new file mode 100644
index 0000000..ba823c0
--- /dev/null
+++ b/source/CaseStudies/LiCl_fusant/index.rst
@@ -0,0 +1,12 @@
+
+===========================
+LiCl_fusant
+===========================
+
+
+
+.. toctree::
+ :maxdepth: 2
+ :caption: LiCl_fusant
+
+ LiCl_fusant
diff --git a/source/Resources/1.png b/source/Resources/1.png
new file mode 100644
index 0000000..120882a
Binary files /dev/null and b/source/Resources/1.png differ
diff --git a/source/Resources/2.png b/source/Resources/2.png
new file mode 100644
index 0000000..c88ef30
Binary files /dev/null and b/source/Resources/2.png differ
diff --git a/source/Tutorials/DeePMD-kit/learnDoc/Handson-Tutorial(v2.0.3).md b/source/Tutorials/DeePMD-kit/learnDoc/Handson-Tutorial(v2.0.3).md
index 33ba329..46bb689 100644
--- a/source/Tutorials/DeePMD-kit/learnDoc/Handson-Tutorial(v2.0.3).md
+++ b/source/Tutorials/DeePMD-kit/learnDoc/Handson-Tutorial(v2.0.3).md
@@ -8,6 +8,9 @@ The workflow of the DeePMD-kit contains three parts:
3. Model application: Use the obtained DP model for MD simulation or model inference.
## Example: a gas-phase methane molecule
+
+
+
The following introduces the basic usage of the DeePMD-kit, taking a gas-phase methane molecule as an example.
### Data preparation
diff --git a/source/index.rst b/source/index.rst
index f288aad..4f62bbd 100644
--- a/source/index.rst
+++ b/source/index.rst
@@ -30,6 +30,8 @@ Hi everyone, here are the tutorials for DeepModeling Projects.
CaseStudies/Gas-phase/index
CaseStudies/Mg-Y_alloy/index
CaseStudies/Transfer-learning/index
+ CaseStudies/LiCl-fusant/index
+
.. toctree::