diff --git a/docs/count.py b/docs/count.py
index d906f4c0..e1aad115 100644
--- a/docs/count.py
+++ b/docs/count.py
@@ -1,98 +1,65 @@
 import os
+import sys
 
 
-def find_all(path='../fastNLP'):
-    head_list = []
-    alias_list = []
-    for path, dirs, files in os.walk(path):
+def find_all_modules():
+    modules = {}
+    children = {}
+    to_doc = set()
+    root = '../fastNLP'
+    for path, dirs, files in os.walk(root):
         for file in files:
             if file.endswith('.py'):
                 name = ".".join(path.split('/')[1:])
                 if file.split('.')[0] != "__init__":
                     name = name + '.' + file.split('.')[0]
-                if len(name.split('.')) < 3 or name.startswith('fastNLP.core'):
-                    heads, alias = find_one(path + '/' + file)
-                    for h in heads:
-                        head_list.append(name + "." + h)
-                    for a in alias:
-                        alias_list.append(a)
-    heads = {}
-    for h in head_list:
-        end = h.split('.')[-1]
-        file = h[:-len(end) - 1]
-        if end not in heads:
-            heads[end] = set()
-        heads[end].add(file)
-    alias = {}
-    for a in alias_list:
-        for each in a:
-            end = each.split('.')[-1]
-            file = each[:-len(end) - 1]
-            if end not in alias:
-                alias[end] = set()
-            alias[end].add(file)
-    print("IN alias NOT IN heads")
-    for item in alias:
-        if item not in heads:
-            print(item, alias[item])
-        elif len(heads[item]) != 2:
-            print(item, alias[item], heads[item])
-    
-    print("\n\nIN heads NOT IN alias")
-    for item in heads:
-        if item not in alias:
-            print(item, heads[item])
+                __import__(name)
+                m = sys.modules[name]
+                modules[name] = m
+                try:
+                    m.__all__
+                except:
+                    print(name, "__all__ missing")
+                    continue
+                if m.__doc__ is None:
+                    print(name, "__doc__ missing")
+                    continue
+                if "undocumented" not in m.__doc__:
+                    to_doc.add(name)
+    for module in to_doc:
+        t = ".".join(module.split('.')[:-1])
+        if t in to_doc:
+            if t not in children:
+                children[t] = set()
+            children[t].add(module)
+    for m in children:
+        children[m] = sorted(children[m])
+    return modules, to_doc, children
 
 
-def find_class(path):
-    with open(path, 'r') as fin:
-        lines = fin.readlines()
-    pars = {}
-    for i, line in enumerate(lines):
-        if line.strip().startswith('class'):
-            line = line.strip()[len('class'):-1].strip()
-            if line[-1] == ')':
-                line = line[:-1].split('(')
-                name = line[0].strip()
-                parents = line[1].split(',')
-                for i in range(len(parents)):
-                    parents[i] = parents[i].strip()
-                if len(parents) == 1:
-                    pars[name] = parents[0]
-                else:
-                    pars[name] = tuple(parents)
-    return pars
+def create_rst_file(modules, name, children):
+    m = modules[name]
+    with open("./source/" + name + ".rst", "w") as fout:
+        t = "=" * len(name)
+        fout.write(name + "\n")
+        fout.write(t + "\n")
+        fout.write("\n")
+        fout.write(".. automodule:: " + name + "\n")
+        if len(m.__all__) > 0:
+            fout.write("   :members: " + ", ".join(m.__all__) + "\n")
+            fout.write("   :inherited-members:\n")
+        fout.write("\n")
+        if name in children:
+            fout.write("子模块\n------\n\n.. toctree::\n\n")
+            for module in children[name]:
+                fout.write("   " + module + "\n")
 
 
-def find_one(path):
-    head_list = []
-    alias = []
-    with open(path, 'r') as fin:
-        lines = fin.readlines()
-    flag = False
-    for i, line in enumerate(lines):
-        if line.strip().startswith('__all__'):
-            line = line.strip()[len('__all__'):].strip()
-            if line[-1] == ']':
-                line = line[1:-1].strip()[1:].strip()
-                head_list.append(line.strip("\"").strip("\'").strip())
-            else:
-                flag = True
-        elif line.strip() == ']':
-            flag = False
-        elif flag:
-            line = line.strip()[:-1].strip("\"").strip("\'").strip()
-            if len(line) == 0 or line[0] == '#':
-                continue
-            head_list.append(line)
-        if line.startswith('def') or line.startswith('class'):
-            if lines[i + 2].strip().startswith("别名："):
-                names = lines[i + 2].strip()[len("别名："):].split()
-                names[0] = names[0][len(":class:`"):-1]
-                names[1] = names[1][len(":class:`"):-1]
-                alias.append((names[0], names[1]))
-    return head_list, alias
+def main():
+    modules, to_doc, children = find_all_modules()
+    for name in to_doc:
+        create_rst_file(modules, name, children)
 
 
 if __name__ == "__main__":
-    find_all()  # use to check __all__
+    main()
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 2e10bc89..83cb7185 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -48,12 +48,14 @@ extensions = [
 autodoc_default_options = {
     'member-order': 'bysource',
     'special-members': '__init__',
-    'undoc-members': True,
+    'undoc-members': False,
 }
 
+autoclass_content = "class"
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
-
+# template_bridge
 # The suffix(es) of source filenames.
 # You can specify multiple suffix as a list of string:
 #
@@ -113,7 +115,7 @@ html_static_path = ['_static']
 # -- Options for HTMLHelp output ---------------------------------------------
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = 'fastNLPdoc'
+htmlhelp_basename = 'fastNLP doc'
 
 # -- Options for LaTeX output ------------------------------------------------
 
diff --git a/docs/source/fastNLP.core.batch.rst b/docs/source/fastNLP.core.batch.rst
index 03008b52..50ad6fed 100644
--- a/docs/source/fastNLP.core.batch.rst
+++ b/docs/source/fastNLP.core.batch.rst
@@ -2,6 +2,6 @@ fastNLP.core.batch
 ==================
 
 .. automodule:: fastNLP.core.batch
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: BatchIter, DataSetIter, TorchLoaderIter
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.callback.rst b/docs/source/fastNLP.core.callback.rst
index 74a7825d..d37ddb11 100644
--- a/docs/source/fastNLP.core.callback.rst
+++ b/docs/source/fastNLP.core.callback.rst
@@ -2,6 +2,6 @@ fastNLP.core.callback
 =====================
 
 .. automodule:: fastNLP.core.callback
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Callback, GradientClipCallback, EarlyStopCallback, FitlogCallback, EvaluateCallback, LRScheduler, ControlC, LRFinder, TensorboardCallback, WarmupCallback, SaveModelCallback, EchoCallback, TesterCallback, CallbackException, EarlyStopError
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.const.rst b/docs/source/fastNLP.core.const.rst
index 330a8883..82a1992e 100644
--- a/docs/source/fastNLP.core.const.rst
+++ b/docs/source/fastNLP.core.const.rst
@@ -2,6 +2,6 @@ fastNLP.core.const
 ==================
 
 .. automodule:: fastNLP.core.const
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Const
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.dataset.rst b/docs/source/fastNLP.core.dataset.rst
index 1ad94bb6..e13d7f1c 100644
--- a/docs/source/fastNLP.core.dataset.rst
+++ b/docs/source/fastNLP.core.dataset.rst
@@ -2,6 +2,6 @@ fastNLP.core.dataset
 ====================
 
 .. automodule:: fastNLP.core.dataset
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: DataSet
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.field.rst b/docs/source/fastNLP.core.field.rst
index 7fc099c9..73dad8af 100644
--- a/docs/source/fastNLP.core.field.rst
+++ b/docs/source/fastNLP.core.field.rst
@@ -2,6 +2,6 @@ fastNLP.core.field
 ==================
 
 .. automodule:: fastNLP.core.field
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Padder, AutoPadder, EngChar2DPadder
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.instance.rst b/docs/source/fastNLP.core.instance.rst
index 6e496ac1..010567b9 100644
--- a/docs/source/fastNLP.core.instance.rst
+++ b/docs/source/fastNLP.core.instance.rst
@@ -2,6 +2,6 @@ fastNLP.core.instance
 =====================
 
 .. automodule:: fastNLP.core.instance
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Instance
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.losses.rst b/docs/source/fastNLP.core.losses.rst
index 8e63dfa1..daf246f8 100644
--- a/docs/source/fastNLP.core.losses.rst
+++ b/docs/source/fastNLP.core.losses.rst
@@ -2,6 +2,6 @@ fastNLP.core.losses
 ===================
 
 .. automodule:: fastNLP.core.losses
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: LossBase, LossFunc, LossInForward, CrossEntropyLoss, BCELoss, L1Loss, NLLLoss
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.metrics.rst b/docs/source/fastNLP.core.metrics.rst
index d3b87bb8..96748a78 100644
--- a/docs/source/fastNLP.core.metrics.rst
+++ b/docs/source/fastNLP.core.metrics.rst
@@ -2,6 +2,6 @@ fastNLP.core.metrics
 ====================
 
 .. automodule:: fastNLP.core.metrics
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: MetricBase, AccuracyMetric, SpanFPreRecMetric, ExtractiveQAMetric
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.optimizer.rst b/docs/source/fastNLP.core.optimizer.rst
index c80be53f..44e45c4f 100644
--- a/docs/source/fastNLP.core.optimizer.rst
+++ b/docs/source/fastNLP.core.optimizer.rst
@@ -2,6 +2,6 @@ fastNLP.core.optimizer
 ======================
 
 .. automodule:: fastNLP.core.optimizer
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Optimizer, SGD, Adam, AdamW
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.rst b/docs/source/fastNLP.core.rst
index 08d161b7..56de46e9 100644
--- a/docs/source/fastNLP.core.rst
+++ b/docs/source/fastNLP.core.rst
@@ -2,12 +2,11 @@ fastNLP.core
 ============
 
 .. automodule:: fastNLP.core
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: DataSet, Instance, FieldArray, Padder, AutoPadder, EngChar2DPadder, Vocabulary, DataSetIter, BatchIter, TorchLoaderIter, Const, Tester, Trainer, cache_results, seq_len_to_mask, get_seq_len, logger, Callback, GradientClipCallback, EarlyStopCallback, FitlogCallback, EvaluateCallback, LRScheduler, ControlC, LRFinder, TensorboardCallback, WarmupCallback, SaveModelCallback, EchoCallback, TesterCallback, CallbackException, EarlyStopError, LossFunc, CrossEntropyLoss, L1Loss, BCELoss, NLLLoss, LossInForward, AccuracyMetric, SpanFPreRecMetric, ExtractiveQAMetric, Optimizer, SGD, Adam, AdamW, SequentialSampler, BucketSampler, RandomSampler, Sampler
+   :inherited-members:
 
-Submodules
-----------
+子模块
+------
 
 .. toctree::
 
diff --git a/docs/source/fastNLP.core.sampler.rst b/docs/source/fastNLP.core.sampler.rst
index 0110f0c0..56291894 100644
--- a/docs/source/fastNLP.core.sampler.rst
+++ b/docs/source/fastNLP.core.sampler.rst
@@ -2,6 +2,6 @@ fastNLP.core.sampler
 ====================
 
 .. automodule:: fastNLP.core.sampler
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Sampler, BucketSampler, SequentialSampler, RandomSampler
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.tester.rst b/docs/source/fastNLP.core.tester.rst
index 4d71a27b..90ec2a88 100644
--- a/docs/source/fastNLP.core.tester.rst
+++ b/docs/source/fastNLP.core.tester.rst
@@ -2,6 +2,6 @@ fastNLP.core.tester
 ===================
 
 .. automodule:: fastNLP.core.tester
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Tester
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.trainer.rst b/docs/source/fastNLP.core.trainer.rst
index 60bf2d5b..92c08718 100644
--- a/docs/source/fastNLP.core.trainer.rst
+++ b/docs/source/fastNLP.core.trainer.rst
@@ -2,6 +2,6 @@ fastNLP.core.trainer
 ====================
 
 .. automodule:: fastNLP.core.trainer
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Trainer
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.utils.rst b/docs/source/fastNLP.core.utils.rst
index 3f80b4e8..027a43e9 100644
--- a/docs/source/fastNLP.core.utils.rst
+++ b/docs/source/fastNLP.core.utils.rst
@@ -2,6 +2,6 @@ fastNLP.core.utils
 ==================
 
 .. automodule:: fastNLP.core.utils
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: cache_results, seq_len_to_mask, get_seq_len
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.core.vocabulary.rst b/docs/source/fastNLP.core.vocabulary.rst
index ba9598b9..ac07a8c6 100644
--- a/docs/source/fastNLP.core.vocabulary.rst
+++ b/docs/source/fastNLP.core.vocabulary.rst
@@ -2,6 +2,6 @@ fastNLP.core.vocabulary
 =======================
 
 .. automodule:: fastNLP.core.vocabulary
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Vocabulary, VocabularyOption
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.embeddings.bert_embedding.rst b/docs/source/fastNLP.embeddings.bert_embedding.rst
index 24ceff1c..51828cb0 100644
--- a/docs/source/fastNLP.embeddings.bert_embedding.rst
+++ b/docs/source/fastNLP.embeddings.bert_embedding.rst
@@ -1,7 +1,7 @@
-fastNLP.embeddings.bert\_embedding
-==================================
+fastNLP.embeddings.bert_embedding
+=================================
 
 .. automodule:: fastNLP.embeddings.bert_embedding
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: BertEmbedding, BertWordPieceEncoder
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.embeddings.char_embedding.rst b/docs/source/fastNLP.embeddings.char_embedding.rst
index 501089d8..a9b129d8 100644
--- a/docs/source/fastNLP.embeddings.char_embedding.rst
+++ b/docs/source/fastNLP.embeddings.char_embedding.rst
@@ -1,7 +1,7 @@
-fastNLP.embeddings.char\_embedding
-==================================
+fastNLP.embeddings.char_embedding
+=================================
 
 .. automodule:: fastNLP.embeddings.char_embedding
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: CNNCharEmbedding, LSTMCharEmbedding
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.embeddings.contextual_embedding.rst b/docs/source/fastNLP.embeddings.contextual_embedding.rst
new file mode 100644
index 00000000..ee64c7a0
--- /dev/null
+++ b/docs/source/fastNLP.embeddings.contextual_embedding.rst
@@ -0,0 +1,7 @@
+fastNLP.embeddings.contextual_embedding
+=======================================
+
+.. automodule:: fastNLP.embeddings.contextual_embedding
+   :members: ContextualEmbedding
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.embeddings.elmo_embedding.rst b/docs/source/fastNLP.embeddings.elmo_embedding.rst
index 76669ee3..06cc13af 100644
--- a/docs/source/fastNLP.embeddings.elmo_embedding.rst
+++ b/docs/source/fastNLP.embeddings.elmo_embedding.rst
@@ -1,7 +1,7 @@
-fastNLP.embeddings.elmo\_embedding
-==================================
+fastNLP.embeddings.elmo_embedding
+=================================
 
 .. automodule:: fastNLP.embeddings.elmo_embedding
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: ElmoEmbedding
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.embeddings.embedding.rst b/docs/source/fastNLP.embeddings.embedding.rst
index 5960d2cd..4d5fcf46 100644
--- a/docs/source/fastNLP.embeddings.embedding.rst
+++ b/docs/source/fastNLP.embeddings.embedding.rst
@@ -2,6 +2,6 @@ fastNLP.embeddings.embedding
 ============================
 
 .. automodule:: fastNLP.embeddings.embedding
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Embedding, TokenEmbedding
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.embeddings.rst b/docs/source/fastNLP.embeddings.rst
index 6872e91d..8376408c 100644
--- a/docs/source/fastNLP.embeddings.rst
+++ b/docs/source/fastNLP.embeddings.rst
@@ -2,17 +2,17 @@ fastNLP.embeddings
 ==================
 
 .. automodule:: fastNLP.embeddings
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Embedding, TokenEmbedding, StaticEmbedding, ElmoEmbedding, BertEmbedding, BertWordPieceEncoder, StackEmbedding, LSTMCharEmbedding, CNNCharEmbedding, get_embeddings
+   :inherited-members:
 
-Submodules
-----------
+子模块
+------
 
 .. toctree::
 
    fastNLP.embeddings.bert_embedding
    fastNLP.embeddings.char_embedding
+   fastNLP.embeddings.contextual_embedding
    fastNLP.embeddings.elmo_embedding
    fastNLP.embeddings.embedding
    fastNLP.embeddings.stack_embedding
diff --git a/docs/source/fastNLP.embeddings.stack_embedding.rst b/docs/source/fastNLP.embeddings.stack_embedding.rst
index 4d2115f7..6af91623 100644
--- a/docs/source/fastNLP.embeddings.stack_embedding.rst
+++ b/docs/source/fastNLP.embeddings.stack_embedding.rst
@@ -1,7 +1,7 @@
-fastNLP.embeddings.stack\_embedding
-===================================
+fastNLP.embeddings.stack_embedding
+==================================
 
 .. automodule:: fastNLP.embeddings.stack_embedding
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: StackEmbedding
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.embeddings.static_embedding.rst b/docs/source/fastNLP.embeddings.static_embedding.rst
index e46de81a..2df1c329 100644
--- a/docs/source/fastNLP.embeddings.static_embedding.rst
+++ b/docs/source/fastNLP.embeddings.static_embedding.rst
@@ -1,7 +1,7 @@
-fastNLP.embeddings.static\_embedding
-====================================
+fastNLP.embeddings.static_embedding
+===================================
 
 .. automodule:: fastNLP.embeddings.static_embedding
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: StaticEmbedding
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.embeddings.utils.rst b/docs/source/fastNLP.embeddings.utils.rst
index 263bfbd6..13e5936b 100644
--- a/docs/source/fastNLP.embeddings.utils.rst
+++ b/docs/source/fastNLP.embeddings.utils.rst
@@ -2,6 +2,6 @@ fastNLP.embeddings.utils
 ========================
 
 .. automodule:: fastNLP.embeddings.utils
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: get_embeddings
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.io.data_bundle.rst b/docs/source/fastNLP.io.data_bundle.rst
index a6273956..71a921f1 100644
--- a/docs/source/fastNLP.io.data_bundle.rst
+++ b/docs/source/fastNLP.io.data_bundle.rst
@@ -1,7 +1,7 @@
-fastNLP.io.data\_bundle
-=======================
+fastNLP.io.data_bundle
+======================
 
 .. automodule:: fastNLP.io.data_bundle
-    :members:
-    :undoc-members:
-    :show-inheritance:
+   :members: DataBundle
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.io.data_loader.rst b/docs/source/fastNLP.io.data_loader.rst
deleted file mode 100644
index 0b4f5d0b..00000000
--- a/docs/source/fastNLP.io.data_loader.rst
+++ /dev/null
@@ -1,8 +0,0 @@
-fastNLP.io.data\_loader
-=======================
-
-.. automodule:: fastNLP.io.data_loader
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
diff --git a/docs/source/fastNLP.io.dataset_loader.rst b/docs/source/fastNLP.io.dataset_loader.rst
index e7990714..c211ecf9 100644
--- a/docs/source/fastNLP.io.dataset_loader.rst
+++ b/docs/source/fastNLP.io.dataset_loader.rst
@@ -1,7 +1,6 @@
-fastNLP.io.dataset\_loader
-==========================
+fastNLP.io.dataset_loader
+=========================
 
 .. automodule:: fastNLP.io.dataset_loader
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: CSVLoader, JsonLoader
+
diff --git a/docs/source/fastNLP.io.embed_loader.rst b/docs/source/fastNLP.io.embed_loader.rst
index 69e1f7ff..581f5c1b 100644
--- a/docs/source/fastNLP.io.embed_loader.rst
+++ b/docs/source/fastNLP.io.embed_loader.rst
@@ -1,7 +1,7 @@
-fastNLP.io.embed\_loader
-========================
+fastNLP.io.embed_loader
+=======================
 
 .. automodule:: fastNLP.io.embed_loader
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: EmbedLoader, EmbeddingOption
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.io.file_utils.rst b/docs/source/fastNLP.io.file_utils.rst
index 944550d7..0815e068 100644
--- a/docs/source/fastNLP.io.file_utils.rst
+++ b/docs/source/fastNLP.io.file_utils.rst
@@ -1,7 +1,7 @@
-fastNLP.io.file\_utils
-======================
+fastNLP.io.file_utils
+=====================
 
 .. automodule:: fastNLP.io.file_utils
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: cached_path, get_filepath, get_cache_path, split_filename_suffix, get_from_cache
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.io.loader.rst b/docs/source/fastNLP.io.loader.rst
index bbdc1d7a..060b5450 100644
--- a/docs/source/fastNLP.io.loader.rst
+++ b/docs/source/fastNLP.io.loader.rst
@@ -2,7 +2,6 @@ fastNLP.io.loader
 =================
 
 .. automodule:: fastNLP.io.loader
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Loader, YelpLoader, YelpFullLoader, YelpPolarityLoader, IMDBLoader, SSTLoader, SST2Loader, ConllLoader, Conll2003Loader, Conll2003NERLoader, OntoNotesNERLoader, CTBLoader, MsraNERLoader, PeopleDailyNERLoader, WeiboNERLoader, CSVLoader, JsonLoader, CWSLoader, MNLILoader, QuoraLoader, SNLILoader, QNLILoader, RTELoader
+   :inherited-members:
 
diff --git a/docs/source/fastNLP.io.model_io.rst b/docs/source/fastNLP.io.model_io.rst
index 537ce752..183122b1 100644
--- a/docs/source/fastNLP.io.model_io.rst
+++ b/docs/source/fastNLP.io.model_io.rst
@@ -1,7 +1,7 @@
-fastNLP.io.model\_io
-====================
+fastNLP.io.model_io
+===================
 
 .. automodule:: fastNLP.io.model_io
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: ModelLoader, ModelSaver
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.io.pipe.rst b/docs/source/fastNLP.io.pipe.rst
index bf126585..d35d2ddc 100644
--- a/docs/source/fastNLP.io.pipe.rst
+++ b/docs/source/fastNLP.io.pipe.rst
@@ -2,7 +2,6 @@ fastNLP.io.pipe
 ===============
 
 .. automodule:: fastNLP.io.pipe
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Pipe, CWSPipe, YelpFullPipe, YelpPolarityPipe, SSTPipe, SST2Pipe, IMDBPipe, Conll2003NERPipe, OntoNotesNERPipe, MsraNERPipe, WeiboNERPipe, PeopleDailyPipe, Conll2003Pipe, MatchingBertPipe, RTEBertPipe, SNLIBertPipe, QuoraBertPipe, QNLIBertPipe, MNLIBertPipe, MatchingPipe, RTEPipe, SNLIPipe, QuoraPipe, QNLIPipe, MNLIPipe
+   :inherited-members:
 
diff --git a/docs/source/fastNLP.io.rst b/docs/source/fastNLP.io.rst
index 0cd5d3f2..2aacb883 100644
--- a/docs/source/fastNLP.io.rst
+++ b/docs/source/fastNLP.io.rst
@@ -2,27 +2,18 @@ fastNLP.io
 ==========
 
 .. automodule:: fastNLP.io
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: DataBundle, EmbedLoader, Loader, YelpLoader, YelpFullLoader, YelpPolarityLoader, IMDBLoader, SSTLoader, SST2Loader, ConllLoader, Conll2003Loader, Conll2003NERLoader, OntoNotesNERLoader, CTBLoader, MsraNERLoader, WeiboNERLoader, PeopleDailyNERLoader, CSVLoader, JsonLoader, CWSLoader, MNLILoader, QuoraLoader, SNLILoader, QNLILoader, RTELoader, Pipe, YelpFullPipe, YelpPolarityPipe, SSTPipe, SST2Pipe, IMDBPipe, Conll2003Pipe, Conll2003NERPipe, OntoNotesNERPipe, MsraNERPipe, PeopleDailyPipe, WeiboNERPipe, CWSPipe, MatchingBertPipe, RTEBertPipe, SNLIBertPipe, QuoraBertPipe, QNLIBertPipe, MNLIBertPipe, MatchingPipe, RTEPipe, SNLIPipe, QuoraPipe, QNLIPipe, MNLIPipe, ModelLoader, ModelSaver
+   :inherited-members:
 
-Subpackages
------------
-
-.. toctree::
-
-   fastNLP.io.data_loader
-   fastNLP.io.loader
-   fastNLP.io.pipe
-
-Submodules
-----------
+子模块
+------
 
 .. toctree::
 
    fastNLP.io.data_bundle
-   fastNLP.io.dataset_loader
    fastNLP.io.embed_loader
    fastNLP.io.file_utils
+   fastNLP.io.loader
    fastNLP.io.model_io
+   fastNLP.io.pipe
    fastNLP.io.utils
diff --git a/docs/source/fastNLP.io.utils.rst b/docs/source/fastNLP.io.utils.rst
index 0b3f3938..3bff3c45 100644
--- a/docs/source/fastNLP.io.utils.rst
+++ b/docs/source/fastNLP.io.utils.rst
@@ -2,6 +2,6 @@ fastNLP.io.utils
 ================
 
 .. automodule:: fastNLP.io.utils
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: check_loader_paths
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.models.biaffine_parser.rst b/docs/source/fastNLP.models.biaffine_parser.rst
index f19504e8..c3dbb0a5 100644
--- a/docs/source/fastNLP.models.biaffine_parser.rst
+++ b/docs/source/fastNLP.models.biaffine_parser.rst
@@ -1,7 +1,7 @@
-fastNLP.models.biaffine\_parser
-===============================
+fastNLP.models.biaffine_parser
+==============================
 
 .. automodule:: fastNLP.models.biaffine_parser
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: BiaffineParser, GraphParser
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.models.cnn_text_classification.rst b/docs/source/fastNLP.models.cnn_text_classification.rst
index eacf6916..fe4bb157 100644
--- a/docs/source/fastNLP.models.cnn_text_classification.rst
+++ b/docs/source/fastNLP.models.cnn_text_classification.rst
@@ -1,7 +1,7 @@
-fastNLP.models.cnn\_text\_classification
-========================================
+fastNLP.models.cnn_text_classification
+======================================
 
 .. automodule:: fastNLP.models.cnn_text_classification
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: CNNText
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.models.rst b/docs/source/fastNLP.models.rst
index 36875b85..88854a79 100644
--- a/docs/source/fastNLP.models.rst
+++ b/docs/source/fastNLP.models.rst
@@ -2,12 +2,11 @@ fastNLP.models
 ==============
 
 .. automodule:: fastNLP.models
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: CNNText, SeqLabeling, AdvSeqLabel, ESIM, StarTransEnc, STSeqLabel, STNLICls, STSeqCls, BiaffineParser, GraphParser
+   :inherited-members:
 
-Submodules
-----------
+子模块
+------
 
 .. toctree::
 
diff --git a/docs/source/fastNLP.models.sequence_labeling.rst b/docs/source/fastNLP.models.sequence_labeling.rst
index 85e28f06..b66e637e 100644
--- a/docs/source/fastNLP.models.sequence_labeling.rst
+++ b/docs/source/fastNLP.models.sequence_labeling.rst
@@ -1,7 +1,7 @@
-fastNLP.models.sequence\_labeling
-=================================
+fastNLP.models.sequence_labeling
+================================
 
 .. automodule:: fastNLP.models.sequence_labeling
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: SeqLabeling, AdvSeqLabel
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.models.snli.rst b/docs/source/fastNLP.models.snli.rst
index 3b9b555c..8551051a 100644
--- a/docs/source/fastNLP.models.snli.rst
+++ b/docs/source/fastNLP.models.snli.rst
@@ -2,6 +2,6 @@ fastNLP.models.snli
 ===================
 
 .. automodule:: fastNLP.models.snli
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: ESIM
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.models.star_transformer.rst b/docs/source/fastNLP.models.star_transformer.rst
index 69d5c5b2..f4b5989e 100644
--- a/docs/source/fastNLP.models.star_transformer.rst
+++ b/docs/source/fastNLP.models.star_transformer.rst
@@ -1,7 +1,7 @@
-fastNLP.models.star\_transformer
-================================
+fastNLP.models.star_transformer
+===============================
 
 .. automodule:: fastNLP.models.star_transformer
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: StarTransEnc, STNLICls, STSeqCls, STSeqLabel
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.modules.decoder.rst b/docs/source/fastNLP.modules.decoder.rst
index ecc2adbd..b121f9e9 100644
--- a/docs/source/fastNLP.modules.decoder.rst
+++ b/docs/source/fastNLP.modules.decoder.rst
@@ -2,7 +2,6 @@ fastNLP.modules.decoder
 =======================
 
 .. automodule:: fastNLP.modules.decoder
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: MLP, ConditionalRandomField, viterbi_decode, allowed_transitions
+   :inherited-members:
 
diff --git a/docs/source/fastNLP.modules.encoder.rst b/docs/source/fastNLP.modules.encoder.rst
index e60f9fa4..6b44a192 100644
--- a/docs/source/fastNLP.modules.encoder.rst
+++ b/docs/source/fastNLP.modules.encoder.rst
@@ -2,7 +2,6 @@ fastNLP.modules.encoder
 =======================
 
 .. automodule:: fastNLP.modules.encoder
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: ConvolutionCharEncoder, LSTMCharEncoder, ConvMaxpool, LSTM, StarTransformer, TransformerEncoder, VarRNN, VarLSTM, VarGRU, MaxPool, MaxPoolWithMask, AvgPool, AvgPoolWithMask, MultiHeadAttention
+   :inherited-members:
 
diff --git a/docs/source/fastNLP.modules.rst b/docs/source/fastNLP.modules.rst
index 06494b53..6134d0dd 100644
--- a/docs/source/fastNLP.modules.rst
+++ b/docs/source/fastNLP.modules.rst
@@ -2,21 +2,14 @@ fastNLP.modules
 ===============
 
 .. automodule:: fastNLP.modules
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: ConvolutionCharEncoder, LSTMCharEncoder, ConvMaxpool, LSTM, StarTransformer, TransformerEncoder, VarRNN, VarLSTM, VarGRU, MaxPool, MaxPoolWithMask, AvgPool, AvgPoolWithMask, MultiHeadAttention, MLP, ConditionalRandomField, viterbi_decode, allowed_transitions, TimestepDropout
+   :inherited-members:
 
-Subpackages
------------
+子模块
+------
 
 .. toctree::
 
    fastNLP.modules.decoder
    fastNLP.modules.encoder
-
-Submodules
-----------
-
-.. toctree::
-
    fastNLP.modules.utils
diff --git a/docs/source/fastNLP.modules.utils.rst b/docs/source/fastNLP.modules.utils.rst
index c0219435..e28ca35a 100644
--- a/docs/source/fastNLP.modules.utils.rst
+++ b/docs/source/fastNLP.modules.utils.rst
@@ -2,6 +2,6 @@ fastNLP.modules.utils
 =====================
 
 .. automodule:: fastNLP.modules.utils
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: initial_parameter, summary
+   :inherited-members:
+
diff --git a/docs/source/fastNLP.rst b/docs/source/fastNLP.rst
index e3ba429d..f22ea936 100644
--- a/docs/source/fastNLP.rst
+++ b/docs/source/fastNLP.rst
@@ -2,12 +2,11 @@ fastNLP
 =======
 
 .. automodule:: fastNLP
-   :members:
-   :undoc-members:
-   :show-inheritance:
+   :members: Instance, FieldArray, DataSetIter, BatchIter, TorchLoaderIter, Vocabulary, DataSet, Const, Trainer, Tester, Callback, GradientClipCallback, EarlyStopCallback, TensorboardCallback, LRScheduler, ControlC, LRFinder, Padder, AutoPadder, EngChar2DPadder, AccuracyMetric, SpanFPreRecMetric, ExtractiveQAMetric, Optimizer, SGD, Adam, AdamW, Sampler, SequentialSampler, BucketSampler, RandomSampler, LossFunc, CrossEntropyLoss, L1Loss, BCELoss, NLLLoss, LossInForward, cache_results, logger
+   :inherited-members:
 
-Subpackages
------------
+子模块
+------
 
 .. toctree::