diff --git a/doc/fluid/api/executor.rst b/doc/fluid/api/executor.rst
index db2842e7f23e74130a966bb347004bee1ccb08fd..f23ecc1f80030f20359ce9675130a167722606c9 100644
--- a/doc/fluid/api/executor.rst
+++ b/doc/fluid/api/executor.rst
@@ -38,11 +38,3 @@ _switch_scope
 ..  autofunction:: paddle.fluid.executor._switch_scope
     :noindex:
 
-.. _api_fluid_executor_fetch_var:
-
-fetch_var
----------
-
-..  autofunction:: paddle.fluid.executor.fetch_var
-    :noindex:
-
diff --git a/doc/fluid/api/fluid.rst b/doc/fluid/api/fluid.rst
index 51cdfe0c2ed045a5b3247c4fdec9868d756eae86..7eab58355c3648d929d3b5d98984adce9034f016 100644
--- a/doc/fluid/api/fluid.rst
+++ b/doc/fluid/api/fluid.rst
@@ -106,22 +106,6 @@ _switch_scope
 ..  autofunction:: paddle.fluid._switch_scope
     :noindex:
 
-.. _api_fluid_fetch_var:
-
-fetch_var
----------
-
-..  autofunction:: paddle.fluid.fetch_var
-    :noindex:
-
-.. _api_fluid_Go:
-
-Go
---
-
-..  autoclass:: paddle.fluid.Go
-    :members:
-    :noindex:
 
 .. _api_fluid_make_channel:
 
diff --git a/paddle/fluid/API.spec b/paddle/fluid/API.spec
index dd172ff9c97814c089ddb2e5bf729880cf0c9cdb..2ce73df0248bee244665b033edddcea70407546d 100644
--- a/paddle/fluid/API.spec
+++ b/paddle/fluid/API.spec
@@ -34,21 +34,10 @@ paddle.fluid.default_main_program ArgSpec(args=[], varargs=None, keywords=None,
 paddle.fluid.program_guard ArgSpec(args=[], varargs='args', keywords='kwds', defaults=None)
 paddle.fluid.get_var ArgSpec(args=['name', 'program'], varargs=None, keywords=None, defaults=(None,))
 paddle.fluid.Executor.__init__ ArgSpec(args=['self', 'place'], varargs=None, keywords=None, defaults=None)
-paddle.fluid.Executor.as_lodtensor ArgSpec(args=['self', 'data'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.Executor.close ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.Executor.run ArgSpec(args=['self', 'program', 'feed', 'fetch_list', 'feed_var_name', 'fetch_var_name', 'scope', 'return_numpy', 'use_program_cache'], varargs=None, keywords=None, defaults=(None, None, None, 'feed', 'fetch', None, True, False))
 paddle.fluid.global_scope ArgSpec(args=[], varargs=None, keywords=None, defaults=None)
 paddle.fluid.scope_guard ArgSpec(args=[], varargs='args', keywords='kwds', defaults=None)
-paddle.fluid.fetch_var ArgSpec(args=['name', 'scope', 'return_numpy'], varargs=None, keywords=None, defaults=(None, True))
-paddle.fluid.Go.__init__ ArgSpec(args=['self', 'name'], varargs=None, keywords=None, defaults=(None,))
-paddle.fluid.Go.construct_go_op ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None)
-paddle.fluid.make_channel ArgSpec(args=['dtype', 'capacity'], varargs=None, keywords=None, defaults=(0,))
-paddle.fluid.channel_send ArgSpec(args=['channel', 'value', 'is_copy'], varargs=None, keywords=None, defaults=(False,))
-paddle.fluid.channel_recv ArgSpec(args=['channel', 'return_value'], varargs=None, keywords=None, defaults=None)
-paddle.fluid.channel_close ArgSpec(args=['channel'], varargs=None, keywords=None, defaults=None)
-paddle.fluid.Select.__init__ ArgSpec(args=['self', 'name'], varargs=None, keywords=None, defaults=(None,))
-paddle.fluid.Select.case ArgSpec(args=['self', 'channel_action_fn', 'channel', 'value', 'is_copy'], varargs=None, keywords=None, defaults=(False,))
-paddle.fluid.Select.default ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.Trainer.__init__ ArgSpec(args=['self', 'train_func', 'optimizer_func', 'param_path', 'place', 'parallel', 'checkpoint_config'], varargs=None, keywords=None, defaults=(None, None, False, None))
 paddle.fluid.Trainer.save_params ArgSpec(args=['self', 'param_path'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.Trainer.stop ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None)
@@ -62,20 +51,16 @@ paddle.fluid.CheckpointConfig.__init__ ArgSpec(args=['self', 'checkpoint_dir', '
 paddle.fluid.Inferencer.__init__ ArgSpec(args=['self', 'infer_func', 'param_path', 'place', 'parallel'], varargs=None, keywords=None, defaults=(None, False))
 paddle.fluid.Inferencer.infer ArgSpec(args=['self', 'inputs', 'return_numpy'], varargs=None, keywords=None, defaults=(True,))
 paddle.fluid.DistributeTranspiler.__init__ ArgSpec(args=['self', 'config'], varargs=None, keywords=None, defaults=(None,))
-paddle.fluid.DistributeTranspiler.create_splited_vars ArgSpec(args=['self', 'source_var', 'block', 'tag'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.DistributeTranspiler.get_pserver_program ArgSpec(args=['self', 'endpoint'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.DistributeTranspiler.get_startup_program ArgSpec(args=['self', 'endpoint', 'pserver_program'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.DistributeTranspiler.get_trainer_program ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.DistributeTranspiler.transpile ArgSpec(args=['self', 'trainer_id', 'program', 'pservers', 'trainers', 'sync_mode'], varargs=None, keywords=None, defaults=(None, '127.0.0.1:6174', 1, True))
 paddle.fluid.InferenceTranspiler.__init__ 
-paddle.fluid.InferenceTranspiler.fuse_batch_norm ArgSpec(args=['self', 'program', 'place', 'scope'], varargs=None, keywords=None, defaults=None)
-paddle.fluid.InferenceTranspiler.fuse_relu_mkldnn ArgSpec(args=['self', 'program'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.InferenceTranspiler.transpile ArgSpec(args=['self', 'program', 'place', 'scope'], varargs=None, keywords=None, defaults=(None,))
 paddle.fluid.memory_optimize ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level'], varargs=None, keywords=None, defaults=(None, False, 0))
 paddle.fluid.release_memory ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,))
 paddle.fluid.DistributeTranspilerConfig.__init__ 
 paddle.fluid.ParallelExecutor.__init__ ArgSpec(args=['self', 'use_cuda', 'loss_name', 'main_program', 'share_vars_from', 'exec_strategy', 'build_strategy', 'num_trainers', 'trainer_id'], varargs=None, keywords='kwargs', defaults=(None, None, None, None, None, 1, 0))
-paddle.fluid.ParallelExecutor.bcast_params ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.ParallelExecutor.run ArgSpec(args=['self', 'fetch_list', 'feed', 'feed_dict', 'return_numpy'], varargs=None, keywords=None, defaults=(None, None, True))
 paddle.fluid.ExecutionStrategy.__init__ __init__(self: paddle.fluid.core.ExecutionStrategy) -> None
 paddle.fluid.BuildStrategy.GradientScaleStrategy.__init__ __init__(self: paddle.fluid.core.GradientScaleStrategy, arg0: int) -> None
@@ -338,14 +323,11 @@ paddle.fluid.contrib.BeamSearchDecoder.read_array ArgSpec(args=['self', 'init',
 paddle.fluid.contrib.BeamSearchDecoder.update_array ArgSpec(args=['self', 'array', 'value'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.contrib.memory_usage ArgSpec(args=['program', 'batch_size'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.transpiler.DistributeTranspiler.__init__ ArgSpec(args=['self', 'config'], varargs=None, keywords=None, defaults=(None,))
-paddle.fluid.transpiler.DistributeTranspiler.create_splited_vars ArgSpec(args=['self', 'source_var', 'block', 'tag'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.transpiler.DistributeTranspiler.get_pserver_program ArgSpec(args=['self', 'endpoint'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.transpiler.DistributeTranspiler.get_startup_program ArgSpec(args=['self', 'endpoint', 'pserver_program'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.transpiler.DistributeTranspiler.get_trainer_program ArgSpec(args=['self'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.transpiler.DistributeTranspiler.transpile ArgSpec(args=['self', 'trainer_id', 'program', 'pservers', 'trainers', 'sync_mode'], varargs=None, keywords=None, defaults=(None, '127.0.0.1:6174', 1, True))
 paddle.fluid.transpiler.InferenceTranspiler.__init__ 
-paddle.fluid.transpiler.InferenceTranspiler.fuse_batch_norm ArgSpec(args=['self', 'program', 'place', 'scope'], varargs=None, keywords=None, defaults=None)
-paddle.fluid.transpiler.InferenceTranspiler.fuse_relu_mkldnn ArgSpec(args=['self', 'program'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.transpiler.InferenceTranspiler.transpile ArgSpec(args=['self', 'program', 'place', 'scope'], varargs=None, keywords=None, defaults=(None,))
 paddle.fluid.transpiler.memory_optimize ArgSpec(args=['input_program', 'skip_opt_set', 'print_log', 'level'], varargs=None, keywords=None, defaults=(None, False, 0))
 paddle.fluid.transpiler.release_memory ArgSpec(args=['input_program', 'skip_opt_set'], varargs=None, keywords=None, defaults=(None,))
diff --git a/paddle/fluid/inference/analysis/analyzer.cc b/paddle/fluid/inference/analysis/analyzer.cc
index c4ab26a2288bb9d8f3cd54a797d2062e0606b219..d8b77d5e60d2c3ae4594ecadc0a75e51b4565f44 100644
--- a/paddle/fluid/inference/analysis/analyzer.cc
+++ b/paddle/fluid/inference/analysis/analyzer.cc
@@ -48,9 +48,9 @@ class DfgPassManagerImpl final : public DfgPassManager {
         if (!node->IsFunction()) return false;
 
         const auto* func = static_cast<const Function*>(node);
-        if (teller_set.count(func->func_type()))
+        if (teller_set.count(func->func_type())) {
           return true;
-        else {
+        } else {
           return false;
         }
       };
diff --git a/paddle/fluid/inference/api/paddle_inference_api.h b/paddle/fluid/inference/api/paddle_inference_api.h
index b24414e8245b1a4d90acce4fa1ad5690e06b47dd..794534467be066e91db2b4c204913ab2cf12dbfd 100644
--- a/paddle/fluid/inference/api/paddle_inference_api.h
+++ b/paddle/fluid/inference/api/paddle_inference_api.h
@@ -45,7 +45,7 @@ class PaddleBuf {
   PaddleBuf(void* data, size_t length)
       : data_(data), length_(length), memory_owned_{false} {}
   // Own memory.
-  PaddleBuf(size_t length)
+  explicit PaddleBuf(size_t length)
       : data_(new char[length]), length_(length), memory_owned_(true) {}
   // Resize to `length` bytes.
   void Resize(size_t length);
diff --git a/paddle/fluid/pybind/pybind.cc b/paddle/fluid/pybind/pybind.cc
index 2320f3e4dbc5d98698670fee19ed983411a802a9..7127bb38f6ddf8a55c1741d1f0ef18c8d9067fba 100644
--- a/paddle/fluid/pybind/pybind.cc
+++ b/paddle/fluid/pybind/pybind.cc
@@ -664,7 +664,7 @@ All parameter, weight, gradient are variables in Paddle.
                   const std::string &, Scope *, std::vector<Scope *> &,
                   const ExecutionStrategy &, const BuildStrategy &, size_t,
                   size_t>())
-      .def("bcast_params", &ParallelExecutor::BCastParamsToDevices)
+      .def("_bcast_params", &ParallelExecutor::BCastParamsToDevices)
       // NOTE: even we return a vec<Scope*>* to Python use reference policy.
       // We still cannot get local_scope from this vector, since the element
       // of vec<Scope*> will be freed by Python GC. We can only return Scope*
diff --git a/python/paddle/fluid/__init__.py b/python/paddle/fluid/__init__.py
index cccb4abe6cf14ac3e90ba59d970c9398b09b7db2..1ae05dec8de6b9cbc9568f0f4d437833be520f8d 100644
--- a/python/paddle/fluid/__init__.py
+++ b/python/paddle/fluid/__init__.py
@@ -48,8 +48,6 @@ from .data_feeder import DataFeeder
 from .core import LoDTensor, LoDTensorArray, CPUPlace, CUDAPlace, CUDAPinnedPlace, Scope
 from .transpiler import DistributeTranspiler, InferenceTranspiler, \
     memory_optimize, release_memory, DistributeTranspilerConfig
-from .concurrency import (Go, make_channel, channel_send, channel_recv,
-                          channel_close, Select)
 from .lod_tensor import create_lod_tensor, create_random_int_lodtensor
 from . import clip
 from . import profiler
@@ -61,7 +59,7 @@ from paddle.fluid.layers.math_op_patch import monkey_patch_variable
 
 Tensor = LoDTensor
 
-__all__ = framework.__all__ + executor.__all__ + concurrency.__all__ + \
+__all__ = framework.__all__ + executor.__all__ + \
     trainer.__all__ + inferencer.__all__ + transpiler.__all__ + \
     parallel_executor.__all__ + lod_tensor.__all__ + [
         'io',
diff --git a/python/paddle/fluid/concurrency.py b/python/paddle/fluid/concurrency.py
index a8c4d66720d6eda857e5960d86fc3b8ec8f11ade..676a52a917dd1f9700ec38de32932938ec339be5 100644
--- a/python/paddle/fluid/concurrency.py
+++ b/python/paddle/fluid/concurrency.py
@@ -19,8 +19,7 @@ from .layers import fill_constant
 from . import core
 
 __all__ = [
-    'Go', 'make_channel', 'channel_send', 'channel_recv', 'channel_close',
-    'Select'
+    'make_channel', 'channel_send', 'channel_recv', 'channel_close', 'Select'
 ]
 
 
@@ -35,10 +34,10 @@ class Go(BlockGuard):
     def __exit__(self, exc_type, exc_val, exc_tb):
         if exc_type is not None:
             return False
-        self.construct_go_op()
+        self._construct_go_op()
         return super(Go, self).__exit__(exc_type, exc_val, exc_tb)
 
-    def construct_go_op(self):
+    def _construct_go_op(self):
         main_program = self.helper.main_program
         go_block = main_program.current_block()
         parent_block = main_program.block(main_program.current_block()
diff --git a/python/paddle/fluid/executor.py b/python/paddle/fluid/executor.py
index 35da1d06a2c1da8ba663ea0f0b9a0e58ea7c4470..e24b9faae24084ccc743a5b5126db9667089e128 100644
--- a/python/paddle/fluid/executor.py
+++ b/python/paddle/fluid/executor.py
@@ -18,9 +18,7 @@ import six
 from .framework import Program, default_main_program, Variable
 from . import core
 
-__all__ = [
-    'Executor', 'global_scope', 'scope_guard', '_switch_scope', 'fetch_var'
-]
+__all__ = ['Executor', 'global_scope', 'scope_guard', '_switch_scope']
 
 g_scope = core.Scope()
 
@@ -171,7 +169,7 @@ def has_fetch_operators(block, fetch_targets, fetch_holder_name):
     return fetch_count > 0
 
 
-def fetch_var(name, scope=None, return_numpy=True):
+def _fetch_var(name, scope=None, return_numpy=True):
     """
     Fetch the value of the variable with the given name from the
     given scope.
@@ -222,6 +220,37 @@ def _get_program_cache_key(feed, fetch_list):
     return str(feed_var_names + fetch_var_names)
 
 
+def _as_lodtensor(data, place):
+    """
+        Convert numpy.ndarray to Tensor, its only support Tensor without LoD information.
+        For higher dimensional sequence data, please use LoDTensor directly.
+
+        Examples:
+            >>> import paddle.fluid as fluid
+            >>> place = fluid.CPUPlace()
+            >>> exe = fluid.executor(place)
+            >>> data = np.array(size=(100, 200, 300))
+            >>> np_outs = map(lambda x: fluid.executor._as_lodtensor(x, place), data)
+            >>>     ...
+
+        Args:
+            data(numpy.ndarray): a instance of array
+
+        Returns:
+            LoDTensor
+        """
+    if isinstance(data, list):
+        raise RuntimeError("Some of your feed data hold LoD information. \
+                They can not be completely cast from a list of Python \
+                ndarray to LoDTensor. Please convert data to LoDTensor \
+                directly before feeding the data.\
+                ")
+    # single tensor case
+    tensor = core.LoDTensor()
+    tensor.set(data, place)
+    return tensor
+
+
 class Executor(object):
     """
     An Executor in Python, only support the single-GPU running. For multi-cards, please refer to
@@ -250,35 +279,6 @@ class Executor(object):
         self.program_caches = dict()
         self._closed = False
 
-    def as_lodtensor(self, data):
-        """
-        Convert numpy.ndarray to Tensor, its only support Tensor without LoD information.
-        For higher dimensional sequence data, please use LoDTensor directly.
-
-        Examples:
-            >>> import paddle.fluid as fluid
-            >>> exe = fluid.executor(fluid.CPUPlace())
-            >>> data = np.array(size=(100, 200, 300))
-            >>> np_outs = map(lambda x: exe.as_lodtensor(x), data)
-            >>>     ...
-
-        Args:
-            data(numpy.ndarray): a instance of array
-
-        Returns:
-            LoDTensor
-        """
-        if isinstance(data, list):
-            raise RuntimeError("Some of your feed data hold LoD information. \
-                They can not be completely cast from a list of Python \
-                ndarray to LoDTensor. Please convert data to LoDTensor \
-                directly before feeding the data.\
-                ")
-        # single tensor case
-        tensor = core.LoDTensor()
-        tensor.set(data, self.place)
-        return tensor
-
     def _get_program_cache(self, program_cache_key):
         return self.program_caches.get(program_cache_key, None)
 
@@ -337,7 +337,7 @@ class Executor(object):
                 feed_target_name = op.desc.output('Out')[0]
                 cur_feed = feed[feed_target_name]
                 if not isinstance(cur_feed, core.LoDTensor):
-                    cur_feed = self.as_lodtensor(cur_feed)
+                    cur_feed = _as_lodtensor(cur_feed, self.place)
                 idx = op.desc.attr('col')
                 core.set_feed_variable(scope, cur_feed, feed_var_name, idx)
             else:
diff --git a/python/paddle/fluid/parallel_executor.py b/python/paddle/fluid/parallel_executor.py
index eabe6bb901ad1b7afe71717eb3f5f5765f261201..2a3555ebdde4d54f63bb420218896560c1b40ffd 100644
--- a/python/paddle/fluid/parallel_executor.py
+++ b/python/paddle/fluid/parallel_executor.py
@@ -273,19 +273,19 @@ class ParallelExecutor(object):
         arr = self.scope.find_var(fetch_var_name).get_lod_tensor_array()
 
         if self.is_dist:
-            self.bcast_params()
+            self._bcast_params()
 
         if return_numpy:
             return executor.as_numpy(arr)
 
         return [arr[i] for i in range(len(arr))]
 
-    def bcast_params(self):
+    def _bcast_params(self):
         """
         Broadcast the parameters to other devices. It is used during
         distributed training.
         """
-        self.executor.bcast_params(set(self.persistable_vars))
+        self.executor._bcast_params(set(self.persistable_vars))
 
     @property
     def device_count(self):
diff --git a/python/paddle/fluid/tests/unittests/test_fetch_var.py b/python/paddle/fluid/tests/unittests/test_fetch_var.py
index 46c3bbb6712c6276e48dd9328d7741a447f28b91..e6f37f0b4ca781e4ec83a00f8f2605ef02716bd7 100644
--- a/python/paddle/fluid/tests/unittests/test_fetch_var.py
+++ b/python/paddle/fluid/tests/unittests/test_fetch_var.py
@@ -26,7 +26,7 @@ class TestFetchVar(op_test.OpTest):
         layers.assign(input=val, output=x)
         exe = fluid.Executor(fluid.CPUPlace())
         exe.run(fluid.default_main_program(), feed={}, fetch_list=[])
-        fetched_x = fluid.fetch_var("x")
+        fetched_x = fluid.executor._fetch_var("x")
         self.assertTrue(
             numpy.array_equal(fetched_x, val),
             "fetch_x=%s val=%s" % (fetched_x, val))
diff --git a/python/paddle/fluid/tests/unittests/test_py_reader_push_pop.py b/python/paddle/fluid/tests/unittests/test_py_reader_push_pop.py
index 91b1fd2af7d8aaf85d17965f8b02c35ee3990291..f9bda5e4701f693f41fe7041ba0f5ec80b6fc31c 100644
--- a/python/paddle/fluid/tests/unittests/test_py_reader_push_pop.py
+++ b/python/paddle/fluid/tests/unittests/test_py_reader_push_pop.py
@@ -62,7 +62,8 @@ class TestPyReader(unittest.TestCase):
                     next_data = np.random.uniform(
                         low=0, high=1000,
                         size=(batch_size, ) + shape[1:]).astype(dtype)
-                    in_data.append(executor.as_lodtensor(next_data))
+                    in_data.append(
+                        fluid.executor._as_lodtensor(next_data, place))
 
                 self.inputs.append(in_data)
 
diff --git a/python/paddle/fluid/tests/unittests/transformer_model.py b/python/paddle/fluid/tests/unittests/transformer_model.py
index 17ab875f6a555c99bbe480a54ea2df3b1f60de2d..868a0248be6833d0e8fed8a26549352562c279c1 100644
--- a/python/paddle/fluid/tests/unittests/transformer_model.py
+++ b/python/paddle/fluid/tests/unittests/transformer_model.py
@@ -22,7 +22,7 @@ pos_enc_param_names = (
     "src_pos_enc_table",
     "trg_pos_enc_table", )
 
-batch_size = 64
+batch_size = 2
 
 
 def position_encoding_init(n_position, d_pos_vec):
diff --git a/python/paddle/fluid/transpiler/distribute_transpiler.py b/python/paddle/fluid/transpiler/distribute_transpiler.py
index 1dd9578ef8570179f0c836fb1cc8a08b770bd21e..1bb86acdf8398fff63e5f55148ddb43b6b4da5be 100644
--- a/python/paddle/fluid/transpiler/distribute_transpiler.py
+++ b/python/paddle/fluid/transpiler/distribute_transpiler.py
@@ -749,14 +749,14 @@ class DistributeTranspiler(object):
                     out_name = op.output("Out")
 
                     ids_var = program.global_block().vars[ids_name[0]]
-                    prefetch_input_vars = self.create_splited_vars(
+                    prefetch_input_vars = self._create_splited_vars(
                         source_var=ids_var,
                         block=program.global_block(),
                         tag="_prefetch_in_")
                     self.all_prefetch_input_vars.append(prefetch_input_vars)
 
                     out_var = program.global_block().vars[out_name[0]]
-                    prefetch_output_vars = self.create_splited_vars(
+                    prefetch_output_vars = self._create_splited_vars(
                         source_var=out_var,
                         block=program.global_block(),
                         tag="_prefetch_out_")
@@ -1038,7 +1038,7 @@ class DistributeTranspiler(object):
             program.global_block()._sync_with_cpp()
         return var_mapping
 
-    def create_splited_vars(self, source_var, block, tag):
+    def _create_splited_vars(self, source_var, block, tag):
         return [
             block.create_var(
                 name=str(source_var.name + tag + str(index)),
diff --git a/python/paddle/fluid/transpiler/inference_transpiler.py b/python/paddle/fluid/transpiler/inference_transpiler.py
index 142fa5c31d2c558e482001da73fa26d8396c3967..87f20bbccf3138585841952efacef5b0a3cbbace 100644
--- a/python/paddle/fluid/transpiler/inference_transpiler.py
+++ b/python/paddle/fluid/transpiler/inference_transpiler.py
@@ -57,10 +57,10 @@ class InferenceTranspiler(object):
             scope = global_scope()
         if not isinstance(scope, core.Scope):
             raise TypeError("scope should be as Scope type or None")
-        self.fuse_batch_norm(program, place, scope)
-        self.fuse_relu_mkldnn(program)
+        self._fuse_batch_norm(program, place, scope)
+        self._fuse_relu_mkldnn(program)
 
-    def fuse_relu_mkldnn(self, program):
+    def _fuse_relu_mkldnn(self, program):
         '''
         Transpile the program by fused relu activation for MKLDNN program.
 
@@ -104,7 +104,7 @@ class InferenceTranspiler(object):
         # And a better solution will be considered later.
         program = program.clone()
 
-    def fuse_batch_norm(self, program, place, scope):
+    def _fuse_batch_norm(self, program, place, scope):
         '''
         Transpile the program by fused batch normalization.