diff --git a/docs/source/fastNLP.core.dataloaders.mix_dataloader.rst b/docs/source/fastNLP.core.dataloaders.mix_dataloader.rst
deleted file mode 100644
index d2ffa234..00000000
--- a/docs/source/fastNLP.core.dataloaders.mix_dataloader.rst
+++ /dev/null
@@ -1,7 +0,0 @@
-fastNLP.core.dataloaders.mix\_dataloader module
-===============================================
-
-.. automodule:: fastNLP.core.dataloaders.mix_dataloader
-   :members:
-   :undoc-members:
-   :show-inheritance:
diff --git a/docs/source/fastNLP.core.drivers.torch_driver.fairscale_sharded.rst b/docs/source/fastNLP.core.drivers.torch_driver.fairscale_sharded.rst
deleted file mode 100644
index 765ac4ae..00000000
--- a/docs/source/fastNLP.core.drivers.torch_driver.fairscale_sharded.rst
+++ /dev/null
@@ -1,7 +0,0 @@
-fastNLP.core.drivers.torch\_driver.fairscale\_sharded module
-============================================================
-
-.. automodule:: fastNLP.core.drivers.torch_driver.fairscale_sharded
-   :members:
-   :undoc-members:
-   :show-inheritance:
diff --git a/docs/source/fastNLP.io.model_io.rst b/docs/source/fastNLP.io.model_io.rst
deleted file mode 100644
index fe13d1d7..00000000
--- a/docs/source/fastNLP.io.model_io.rst
+++ /dev/null
@@ -1,7 +0,0 @@
-fastNLP.io.model\_io module
-===========================
-
-.. automodule:: fastNLP.io.model_io
-   :members:
-   :undoc-members:
-   :show-inheritance:
diff --git a/docs/source/fastNLP.io.pipe.coreference.rst b/docs/source/fastNLP.io.pipe.coreference.rst
deleted file mode 100644
index bccdb0a7..00000000
--- a/docs/source/fastNLP.io.pipe.coreference.rst
+++ /dev/null
@@ -1,7 +0,0 @@
-fastNLP.io.pipe.coreference module
-==================================
-
-.. automodule:: fastNLP.io.pipe.coreference
-   :members:
-   :undoc-members:
-   :show-inheritance: