diff --git a/x2paddle/core/program.py b/x2paddle/core/program.py
index 88b9df330a17f98e87b33cb07204925b0df897c5..9f35a8b0a0d2d438d76ac7a3a2f9c4ed58186b2e 100644
--- a/x2paddle/core/program.py
+++ b/x2paddle/core/program.py
@@ -1,4 +1,4 @@
-#   Copyright (c) 2019  PaddlePaddle Authors. All Rights Reserved.
+#   Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License"
 # you may not use this file except in compliance with the License.
diff --git a/x2paddle/decoder/pytorch_decoder.py b/x2paddle/decoder/pytorch_decoder.py
index 9befec388e964e8d7cd0187e2dcbea0830756a0e..c1a626d58bd352a10f020c95867fffbc1dbf6b47 100644
--- a/x2paddle/decoder/pytorch_decoder.py
+++ b/x2paddle/decoder/pytorch_decoder.py
@@ -1,4 +1,4 @@
-#   Copyright (c) 2019  PaddlePaddle Authors. All Rights Reserved.
+#   Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License"
 # you may not use this file except in compliance with the License.
diff --git a/x2paddle/op_mapper/pytorch2paddle/aten.py b/x2paddle/op_mapper/pytorch2paddle/aten.py
index f5289fd5ac2864db8ca96a4c438737209df5ecb4..565b289e485339d2ccb6aa67b5ed2b018f8768b5 100644
--- a/x2paddle/op_mapper/pytorch2paddle/aten.py
+++ b/x2paddle/op_mapper/pytorch2paddle/aten.py
@@ -1044,7 +1044,10 @@ def aten_embedding(mapper, graph, node):
     # 获取当前节点输入的list
     current_inputs = list(layer_inputs.values())
     # 处理输入2，即%45
-    layer_attrs["padding_idx"] = mapper.attrs[inputs_name[2]]
+    if mapper.attrs[inputs_name[2]] == -1:
+        layer_attrs["padding_idx"] = None
+    else:
+        layer_attrs["padding_idx"] = mapper.attrs[inputs_name[2]]
     # 处理输入4，即%46
     #     layer_attrs["sparse"] = mapper.attrs[inputs_name[4]]
     layer_attrs["is_sparse"] = mapper.attrs[inputs_name[4]]
@@ -2933,6 +2936,44 @@ def aten_softplus(mapper, graph, node):
     return current_inputs, current_outputs
 
 
+def aten_squeeze(mapper, graph, node):
+    """ 构造删除位数为1的维度的PaddleLayer。
+
+    TorchScript示例:
+        %12 : Tensor = aten::squeeze(%start_logits.1, %4)
+        参数含义:
+        %12 (Tensor): 输出，删除维度后的Tensor。
+        %start_logits.1 (Tensor): 需要删除维度的Tensor。
+        %4 (int): 维度。
+    """
+    output_name = mapper._get_outputs_name(node)[0]
+    layer_outputs = [output_name]
+    layer_inputs = {}
+    layer_attrs = {}
+    inputs_name, inputs_node = mapper._get_inputs_name(node)
+    # 获取当前节点输出的list
+    current_outputs = [output_name]
+    # 处理输入0，即%start_logits.1
+    mapper._check_input(graph, inputs_node[0], inputs_name[0], current_outputs)
+    layer_inputs["x"] = inputs_name[0]
+    # 获取当前节点输入的list
+    current_inputs = list(layer_inputs.values())
+    # 处理输入1，即%4
+    if inputs_name[1] in mapper.attrs:
+        layer_attrs["axis"] = mapper.attrs[inputs_name[1]]
+    else:
+        mapper._check_input(graph, inputs_node[1], inputs_name[1],
+                            current_outputs)
+        layer_inputs["axis"] = inputs_name[1]
+        current_inputs.append(inputs_name[1])
+    graph.add_layer(
+        "paddle.tensor.squeeze",
+        inputs=layer_inputs,
+        outputs=layer_outputs,
+        **layer_attrs)
+    return current_inputs, current_outputs
+
+
 def aten_stack(mapper, graph, node):
     """ 构造堆叠Tensor的PaddleLayer。
 
diff --git a/x2paddle/op_mapper/pytorch2paddle/prim2code.py b/x2paddle/op_mapper/pytorch2paddle/prim2code.py
index 04bf22daab1a346befc561ac440d63928cf21d27..d16197f6793fccc7e236edbc21e5abb01ce98c37 100644
--- a/x2paddle/op_mapper/pytorch2paddle/prim2code.py
+++ b/x2paddle/op_mapper/pytorch2paddle/prim2code.py
@@ -1,4 +1,4 @@
-#   Copyright (c) 2019  PaddlePaddle Authors. All Rights Reserved.
+#   Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License"
 # you may not use this file except in compliance with the License.
diff --git a/x2paddle/op_mapper/pytorch2paddle/pytorch_op_mapper.py b/x2paddle/op_mapper/pytorch2paddle/pytorch_op_mapper.py
index 26564e857aabfa136f943637ffd42a51b64e5612..2d63411879009003d80485602ae28e2a498b0035 100644
--- a/x2paddle/op_mapper/pytorch2paddle/pytorch_op_mapper.py
+++ b/x2paddle/op_mapper/pytorch2paddle/pytorch_op_mapper.py
@@ -1,4 +1,4 @@
-#   Copyright (c) 2019  PaddlePaddle Authors. All Rights Reserved.
+#   Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License"
 # you may not use this file except in compliance with the License.
diff --git a/x2paddle/optimizer/fusion/constant_fuse_pass.py b/x2paddle/optimizer/fusion/constant_fuse_pass.py
index 26b24c4c5ffa3bca1b220feeb37e88b7176de429..62d3552bcd4ff041dca81fd03ee6ef829ebe64ba 100644
--- a/x2paddle/optimizer/fusion/constant_fuse_pass.py
+++ b/x2paddle/optimizer/fusion/constant_fuse_pass.py
@@ -1,3 +1,5 @@
+#   Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License"
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/x2paddle/optimizer/fusion/dropout_fuse_pass.py b/x2paddle/optimizer/fusion/dropout_fuse_pass.py
index 52104ac696cef1e15eb65073fac22c9ad0381b18..e004b1de88c1677e81007ac696adf6ae4713e8ff 100644
--- a/x2paddle/optimizer/fusion/dropout_fuse_pass.py
+++ b/x2paddle/optimizer/fusion/dropout_fuse_pass.py
@@ -1,3 +1,5 @@
+#   Copyright (c) 2020  PaddlePaddle Authors. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License"
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at