diff --git a/paddle/fluid/operators/fill_constant_op.cc b/paddle/fluid/operators/fill_constant_op.cc
index 0dcbb6e727de78534cd75ab8f65516d22669ade8..44dcc343a4b4a003b9f871f5a785c572e42451ed 100644
--- a/paddle/fluid/operators/fill_constant_op.cc
+++ b/paddle/fluid/operators/fill_constant_op.cc
@@ -149,8 +149,8 @@ REGISTER_OPERATOR(
 REGISTER_OP_CPU_KERNEL(
     fill_constant, ops::FillConstantKernel<float>,
     ops::FillConstantKernel<double>, ops::FillConstantKernel<uint8_t>,
-    ops::FillConstantKernel<int64_t>, ops::FillConstantKernel<int>,
-    ops::FillConstantKernel<bool>,
+    ops::FillConstantKernel<int16_t>, ops::FillConstantKernel<int>,
+    ops::FillConstantKernel<int64_t>, ops::FillConstantKernel<bool>,
     ops::FillConstantKernel<paddle::platform::float16>,
     ops::FillConstantKernel<paddle::platform::bfloat16>,
     ops::FillConstantKernel<paddle::platform::complex<float>>,
diff --git a/paddle/fluid/operators/fill_constant_op.cu.cc b/paddle/fluid/operators/fill_constant_op.cu.cc
index a862cda13888ee7086d8ce17511b9851a36d18a6..defd98f9d490042841fb8ee9317853ab9f62de20 100644
--- a/paddle/fluid/operators/fill_constant_op.cu.cc
+++ b/paddle/fluid/operators/fill_constant_op.cu.cc
@@ -18,8 +18,8 @@ namespace ops = paddle::operators;
 REGISTER_OP_CUDA_KERNEL(
     fill_constant, ops::FillConstantKernel<float>,
     ops::FillConstantKernel<double>, ops::FillConstantKernel<uint8_t>,
-    ops::FillConstantKernel<int64_t>, ops::FillConstantKernel<int>,
-    ops::FillConstantKernel<bool>,
+    ops::FillConstantKernel<int16_t>, ops::FillConstantKernel<int>,
+    ops::FillConstantKernel<int64_t>, ops::FillConstantKernel<bool>,
     ops::FillConstantKernel<paddle::platform::float16>,
     ops::FillConstantKernel<paddle::platform::complex<float>>,
     ops::FillConstantKernel<paddle::platform::complex<double>>);
diff --git a/paddle/fluid/operators/math/math_function.cc b/paddle/fluid/operators/math/math_function.cc
index 1266ee7462d2d5cca38905bcfde54932f0f8efb5..9bd833919626d102ef533183693de4cbfb16be6a 100644
--- a/paddle/fluid/operators/math/math_function.cc
+++ b/paddle/fluid/operators/math/math_function.cc
@@ -41,6 +41,7 @@ template struct SetConstant<platform::CPUDeviceContext, platform::float16>;
 template struct SetConstant<platform::CPUDeviceContext, platform::bfloat16>;
 template struct SetConstant<platform::CPUDeviceContext, float>;
 template struct SetConstant<platform::CPUDeviceContext, double>;
+template struct SetConstant<platform::CPUDeviceContext, int16_t>;
 template struct SetConstant<platform::CPUDeviceContext, int>;
 template struct SetConstant<platform::CPUDeviceContext, int64_t>;
 template struct SetConstant<platform::CPUDeviceContext, bool>;
@@ -56,6 +57,7 @@ template struct SetConstant<platform::XPUDeviceContext, platform::bfloat16>;
 template struct SetConstant<platform::XPUDeviceContext, float>;
 template struct SetConstant<platform::XPUDeviceContext, double>;
 template struct SetConstant<platform::XPUDeviceContext, uint8_t>;
+template struct SetConstant<platform::XPUDeviceContext, int16_t>;
 template struct SetConstant<platform::XPUDeviceContext, int>;
 template struct SetConstant<platform::XPUDeviceContext, int64_t>;
 template struct SetConstant<platform::XPUDeviceContext, bool>;
diff --git a/paddle/fluid/operators/math/math_function.cu b/paddle/fluid/operators/math/math_function.cu
index 248f62129991328fd59886192bd7de95bf2b3037..46dd58562aebdc8d1606225e4b0de399d144e5f0 100644
--- a/paddle/fluid/operators/math/math_function.cu
+++ b/paddle/fluid/operators/math/math_function.cu
@@ -35,6 +35,7 @@ template struct SetConstant<platform::CUDADeviceContext, float>;
 template struct SetConstant<platform::CUDADeviceContext, double>;
 template struct SetConstant<platform::CUDADeviceContext, uint8_t>;
 template struct SetConstant<platform::CUDADeviceContext, int>;
+template struct SetConstant<platform::CUDADeviceContext, int16_t>;
 template struct SetConstant<platform::CUDADeviceContext, int64_t>;
 template struct SetConstant<platform::CUDADeviceContext, bool>;
 template struct SetConstant<platform::CUDADeviceContext,
diff --git a/python/paddle/fluid/layers/tensor.py b/python/paddle/fluid/layers/tensor.py
index 06b2d5137751490eb2ecf8c1bcbadf273caeb113..3a0bbeb0fa3412849fee1d983f2ea1702161fa81 100644
--- a/python/paddle/fluid/layers/tensor.py
+++ b/python/paddle/fluid/layers/tensor.py
@@ -674,7 +674,7 @@ def fill_constant(shape, dtype, value, force_cpu=False, out=None, name=None):
             If ``shape`` is a list or tuple, the elements of it should be integers or Tensors with shape [1].
             If ``shape`` is an Tensor, it should be an 1-D Tensor with date type int32 or int64.
         dtype(np.dtype|str): Data type of the output Tensor which can
-            be float16, float32, float64, uint8, int32, int64.
+            be float16, float32, float64, uint8, int16, int32, int64.
         value(bool|float|int|Tensor): The constant value used to initialize 
             the Tensor to be created. If ``value`` is an Tensor, it should be an 1-D Tensor.
         force_cpu(bool, optional): data should be on CPU if it's true, default value is False.
@@ -712,7 +712,7 @@ def fill_constant(shape, dtype, value, force_cpu=False, out=None, name=None):
     attrs = {'force_cpu': force_cpu}
     dtype = convert_dtype(dtype)
     if not isinstance(value, Variable):
-        if dtype in ['uint8', 'int64', 'int32']:
+        if dtype in ['uint8', 'int16', 'int32', 'int64']:
             attrs['str_value'] = str(int(value))
             attrs['value'] = int(value)
         else:
@@ -725,7 +725,7 @@ def fill_constant(shape, dtype, value, force_cpu=False, out=None, name=None):
             out = _varbase_creator(dtype=dtype)
 
         if isinstance(value, Variable):
-            if dtype in ['uint8', 'int64', 'int32']:
+            if dtype in ['uint8', 'int16', 'int32', 'int64']:
                 attrs['str_value'] = str(int(value.numpy().item(0)))
             else:
                 attrs['str_value'] = str(float(value.numpy().item(0)))
@@ -745,10 +745,10 @@ def fill_constant(shape, dtype, value, force_cpu=False, out=None, name=None):
         inputs['ValueTensor'] = value
 
     check_shape(shape)
-    check_dtype(
-        dtype, 'dtype',
-        ['bool', 'float16', 'float32', 'float64', 'uint8', 'int32', 'int64'],
-        'fill_constant')
+    check_dtype(dtype, 'dtype', [
+        'bool', 'float16', 'float32', 'float64', 'uint8', 'int16', 'int32',
+        'int64'
+    ], 'fill_constant')
     check_type(shape, 'shape', (Variable, list, tuple), 'fill_constant')
 
     if out is not None:
diff --git a/python/paddle/fluid/tests/unittests/test_fill_constant_op.py b/python/paddle/fluid/tests/unittests/test_fill_constant_op.py
index 770b6d3e92e1656d40c6ce1f7452fef8186288f2..822c952893e11861cb1febf2d29b09e73ffa486e 100644
--- a/python/paddle/fluid/tests/unittests/test_fill_constant_op.py
+++ b/python/paddle/fluid/tests/unittests/test_fill_constant_op.py
@@ -358,13 +358,6 @@ class TestFillConstantOpError(unittest.TestCase):
                 shape=[1],
                 value=5,
                 dtype='uint4')
-            self.assertRaises(
-                TypeError,
-                fluid.layers.fill_constant,
-                shape=[1],
-                value=5,
-                dtype='int16',
-                out=x1)
 
             self.assertRaises(
                 TypeError,
@@ -375,7 +368,7 @@ class TestFillConstantOpError(unittest.TestCase):
                 out=x1)
 
             # The argument dtype of fill_constant_op must be one of bool, float16,
-            #float32, float64, uint8, int32 or int64
+            #float32, float64, uint8, int16, int32 or int64
             x2 = fluid.layers.data(name='x2', shape=[1], dtype="int32")
 
             self.assertRaises(
diff --git a/python/paddle/fluid/tests/unittests/test_full_op.py b/python/paddle/fluid/tests/unittests/test_full_op.py
index 19944aba46df0a3eeb9d95db8071535bc536a411..c508d56c29a438d2700c8ea24be548d00772aa3e 100644
--- a/python/paddle/fluid/tests/unittests/test_full_op.py
+++ b/python/paddle/fluid/tests/unittests/test_full_op.py
@@ -84,7 +84,7 @@ class TestFullOpError(unittest.TestCase):
                 TypeError, paddle.full, shape=[1], fill_value=5, dtype='uint4')
 
             # The argument dtype of full must be one of bool, float16,
-            #float32, float64, uint8, int32 or int64
+            #float32, float64, uint8, int16, int32 or int64
 
             # The argument shape's type of full_op  must be list, tuple or Variable.
             def test_shape_type():