diff --git a/docs/format.py b/docs/format.py
deleted file mode 100644
index 67671ae7..00000000
--- a/docs/format.py
+++ /dev/null
@@ -1,68 +0,0 @@
-import os
-
-
-def shorten(file, to_delete, cut=False):
-    if file.endswith("index.rst") or file.endswith("conf.py"):
-        return
-    res = []
-    with open(file, "r") as fin:
-        lines = fin.readlines()
-    for line in lines:
-        if cut and line.rstrip() == "Submodules":
-            break
-        else:
-            res.append(line.rstrip())
-    for i, line in enumerate(res):
-        if line.endswith(" package"):
-            res[i] = res[i][:-len(" package")]
-            res[i + 1] = res[i + 1][:-len(" package")]
-        elif line.endswith(" module"):
-            res[i] = res[i][:-len(" module")]
-            res[i + 1] = res[i + 1][:-len(" module")]
-        else:
-            for name in to_delete:
-                if line.endswith(name):
-                    res[i] = "del"
-
-    with open(file, "w") as fout:
-        for line in res:
-            if line != "del":
-                print(line, file=fout)
-
-
-def clear(path='./source/'):
-    files = os.listdir(path)
-    to_delete = [
-        "fastNLP.core.dist_trainer",
-        "fastNLP.core.predictor",
-
-        "fastNLP.io.file_reader",
-        "fastNLP.io.config_io",
-
-        "fastNLP.embeddings.contextual_embedding",
-
-        "fastNLP.modules.dropout",
-        "fastNLP.models.base_model",
-        "fastNLP.models.bert",
-        "fastNLP.models.enas_utils",
-        "fastNLP.models.enas_controller",
-        "fastNLP.models.enas_model",
-        "fastNLP.models.enas_trainer",
-    ]
-    for file in files:
-        if not os.path.isdir(path + file):
-            res = file.split('.')
-            if len(res) > 4:
-                to_delete.append(file[:-4])
-            elif len(res) == 4:
-                shorten(path + file, to_delete, True)
-            else:
-                shorten(path + file, to_delete)
-    for file in to_delete:
-        try:
-            os.remove(path + file + ".rst")
-        except:
-            pass
-
-
-clear()