diff --git a/paddle/fluid/API.spec b/paddle/fluid/API.spec
index 2ae0008bced566bc780d5bd84610c313cfe03db7..b2bae493974037b53bcccbae6c800de0c8d9801e 100755
--- a/paddle/fluid/API.spec
+++ b/paddle/fluid/API.spec
@@ -1055,7 +1055,7 @@ paddle.fluid.LoDTensor.recursive_sequence_lengths recursive_sequence_lengths(sel
 paddle.fluid.LoDTensor.set_lod set_lod(self: paddle.fluid.core_avx.LoDTensor, lod: List[List[int]]) -> None
 paddle.fluid.LoDTensor.set_recursive_sequence_lengths set_recursive_sequence_lengths(self: paddle.fluid.core_avx.LoDTensor, recursive_sequence_lengths: List[List[int]]) -> None
 paddle.fluid.LoDTensor.shape shape(self: paddle.fluid.core_avx.Tensor) -> List[int]
-paddle.fluid.LoDTensorArray ('paddle.fluid.core_avx.LoDTensorArray', ('document', 'e9895b67ba54438b9c0f7053e18966f5'))
+paddle.fluid.LoDTensorArray ('paddle.fluid.core_avx.LoDTensorArray', ('document', '54b28e608be8c035f2bbe18a5c12cfd2'))
 paddle.fluid.LoDTensorArray.__init__ __init__(self: paddle.fluid.core_avx.LoDTensorArray) -> None
 paddle.fluid.LoDTensorArray.append append(self: paddle.fluid.core_avx.LoDTensorArray, tensor: paddle.fluid.core_avx.LoDTensor) -> None
 paddle.fluid.CPUPlace ('paddle.fluid.core_avx.CPUPlace', ('document', 'd269ec68ce9b102ab10610e89ffa06e1'))
diff --git a/paddle/fluid/pybind/pybind.cc b/paddle/fluid/pybind/pybind.cc
index 88999dcdda72ba7f4f4dfb00a4916f8c439c21e8..dd41dd1d02eeec76301805da929750e239fdab70 100644
--- a/paddle/fluid/pybind/pybind.cc
+++ b/paddle/fluid/pybind/pybind.cc
@@ -1131,7 +1131,7 @@ All parameter, weight, gradient are variables in Paddle.
       });
 
   py::class_<LoDTensorArray>(m, "LoDTensorArray", R"DOC(
-    Array of LoDTensor.
+    LoDTensorArray is array of LoDTensor, it supports operator[], len() and for-loop iteration.
 
     Examples:
         .. code-block:: python
@@ -1160,6 +1160,12 @@ All parameter, weight, gradient are variables in Paddle.
            },
            py::arg("tensor"), R"DOC(
              Append a LoDensor to LoDTensorArray.
+              
+             Args:
+                   tensor (LoDTensor): The LoDTensor to be appended.
+
+             Returns:
+                   None.
 
              Examples:
                  .. code-block:: python