diff --git a/docs/python_api/autodoc/easyidp.jsonfile.read_geojson.rst b/docs/python_api/autodoc/easyidp.jsonfile.read_geojson.rst
new file mode 100644
index 0000000..144d71d
--- /dev/null
+++ b/docs/python_api/autodoc/easyidp.jsonfile.read_geojson.rst
@@ -0,0 +1,6 @@
+easyidp.jsonfile.read\_geojson
+==============================
+
+.. currentmodule:: easyidp.jsonfile
+
+.. autofunction:: read_geojson
\ No newline at end of file
diff --git a/docs/python_api/autodoc/easyidp.jsonfile.show_geojson_fields.rst b/docs/python_api/autodoc/easyidp.jsonfile.show_geojson_fields.rst
new file mode 100644
index 0000000..3f52518
--- /dev/null
+++ b/docs/python_api/autodoc/easyidp.jsonfile.show_geojson_fields.rst
@@ -0,0 +1,6 @@
+easyidp.jsonfile.show\_geojson\_fields
+======================================
+
+.. currentmodule:: easyidp.jsonfile
+
+.. autofunction:: show_geojson_fields
\ No newline at end of file
diff --git a/docs/python_api/index.rst b/docs/python_api/index.rst
index 4eccf01..a3ad669 100644
--- a/docs/python_api/index.rst
+++ b/docs/python_api/index.rst
@@ -13,7 +13,7 @@ The EasyIDP package have the following modules:
 - :doc:`ROI Module <./roi>` : read region of interest from shp and txt file.
   
   - :doc:`shp Submodule <./shp>`: read shape (\*.shp) file.
-  - :doc:`jsonfile Submodule <./json>`: read and write json file.
+  - :doc:`jsonfile Submodule <./json>`: read and write json and geojson file.
   - :doc:`geotools Submodule <./geotools>`: transform geo-coordinate.
 
 - :doc:`reconstruct Module <./reconstruct>` : process 3D reconstruction software project.
diff --git a/docs/python_api/json.rst b/docs/python_api/json.rst
index 31a1632..390db7e 100644
--- a/docs/python_api/json.rst
+++ b/docs/python_api/json.rst
@@ -22,6 +22,8 @@ Functions
     :toctree: autodoc
 
     read_json
+    read_geojson
+    show_geojson_fields
     dict2json
     write_json
     save_json
\ No newline at end of file
diff --git a/easyidp/shp.py b/easyidp/shp.py
index 191f896..c6c14cb 100644
--- a/easyidp/shp.py
+++ b/easyidp/shp.py
@@ -63,7 +63,7 @@ def read_proj(prj_path):
 
 def show_shp_fields(shp_path, encoding="utf-8"):
     """
-    Read shp field data to pandas.DataFrame, for further json metadata usage
+    Show geojson properties data, for better setting ``name_field`` of :py:obj:`read_shp <easyidp.roi.ROI.read_shp>`
     
     Parameters
     ----------