diff --git a/paddle/fluid/operators/mlu/mlu_baseop.cc b/paddle/fluid/operators/mlu/mlu_baseop.cc
index 8c907ab0e8dec9915e3c5418d7cc605ca319db0e..6b801924446ca54b3959baf655be7765c3834de7 100644
--- a/paddle/fluid/operators/mlu/mlu_baseop.cc
+++ b/paddle/fluid/operators/mlu/mlu_baseop.cc
@@ -688,8 +688,9 @@ MLUCnnlTrigonDesc::~MLUCnnlTrigonDesc() {
     const cnnlTensorDescriptor_t diff_y_desc, void* back_out) {
   cnnlHandle_t handle = GetHandleFromCTX(ctx);
 
-  PADDLE_ENFORCE_MLU_SUCCESS(cnnlSparseSoftmaxCrossEntropyWithLogits(
-      handle, mode, x_desc, input, label_desc, label, y_desc, output,
+  const cnnlComputationPreference_t prefer = CNNL_COMPUTATION_HIGH_PRECISION;
+  PADDLE_ENFORCE_MLU_SUCCESS(cnnlSparseSoftmaxCrossEntropyWithLogits_v2(
+      handle, prefer, mode, x_desc, input, label_desc, label, y_desc, output,
       diff_y_desc, back_out));
 }
 
diff --git a/paddle/fluid/operators/slice_op_mlu.cc b/paddle/fluid/operators/slice_op_mlu.cc
new file mode 100644
index 0000000000000000000000000000000000000000..43322e4b2e75b2c46584cd63ac8f0ba300e247fb
--- /dev/null
+++ b/paddle/fluid/operators/slice_op_mlu.cc
@@ -0,0 +1,196 @@
+/* Copyright (c) 2022 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
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#include "paddle/fluid/operators/slice_op.h"
+
+#include "paddle/fluid/operators/mlu/mlu_baseop.h"
+#include "paddle/phi/kernels/funcs/slice_utils.h"
+
+namespace paddle {
+namespace operators {
+
+using Tensor = framework::Tensor;
+
+template <typename T>
+class SliceMLUKernel : public framework::OpKernel<T> {
+ public:
+  void Compute(const framework::ExecutionContext& ctx) const override {
+    auto* input = ctx.Input<Tensor>("Input");
+    auto* out = ctx.Output<Tensor>("Out");
+
+    auto axes = ctx.Attr<std::vector<int>>("axes");
+    auto starts = ctx.Attr<std::vector<int>>("starts");
+    auto ends = ctx.Attr<std::vector<int>>("ends");
+
+    auto decrease_axis = ctx.Attr<std::vector<int>>("decrease_axis");
+    auto infer_flags = ctx.Attr<std::vector<int>>("infer_flags");
+
+    // Get the accurate attribute value of starts and ends
+    auto starts_tensor_list = ctx.MultiInput<Tensor>("StartsTensorList");
+    if (ctx.HasInput("StartsTensor")) {
+      starts = GetDataFromTensor<int>(ctx.Input<Tensor>("StartsTensor"));
+    } else if (starts_tensor_list.size() > 0) {
+      starts = GetDataFromTensorList<int>(starts_tensor_list);
+    }
+
+    auto ends_tensor_list = ctx.MultiInput<Tensor>("EndsTensorList");
+    if (ctx.HasInput("EndsTensor")) {
+      ends = GetDataFromTensor<int>(ctx.Input<Tensor>("EndsTensor"));
+    } else if (ends_tensor_list.size() > 0) {
+      ends = GetDataFromTensorList<int>(ends_tensor_list);
+    }
+
+    PADDLE_ENFORCE_EQ(
+        starts.size(), axes.size(),
+        platform::errors::InvalidArgument(
+            "The size of starts must be equal to the size of axes."));
+    PADDLE_ENFORCE_EQ(
+        ends.size(), axes.size(),
+        platform::errors::InvalidArgument(
+            "The size of ends must be equal to the size of axes."));
+
+    const auto& in_dims = input->dims();
+    auto slice_dims = out->dims();
+    bool reset_slice_dims = false;
+    if (ctx.HasInput("StartsTensor") || ctx.HasInput("EndsTensor") ||
+        starts_tensor_list.size() > 0 || ends_tensor_list.size() > 0) {
+      // Infer output dims
+      for (size_t i = 0; i < axes.size(); ++i) {
+        // when start == -1 && end == start+1
+        if (starts[i] == -1 && ends[i] == 0 && infer_flags[i] == -1) {
+          auto ret =
+              std::find(decrease_axis.begin(), decrease_axis.end(), axes[i]);
+          if (ret != decrease_axis.end()) {
+            ends[i] = in_dims[axes[i]];
+          }
+        }
+      }
+
+      phi::funcs::CheckAndUpdateSliceAttrs(in_dims, axes, &starts, &ends);
+      slice_dims = phi::funcs::GetSliceDims<int>(in_dims, axes, starts, ends,
+                                                 nullptr, nullptr);
+      reset_slice_dims = true;
+      auto out_dims = phi::funcs::GetDecreasedDims(slice_dims, decrease_axis);
+
+      out->Resize(out_dims);
+    }
+    if (slice_dims.size() != in_dims.size() && !reset_slice_dims) {
+      phi::funcs::CheckAndUpdateSliceAttrs(in_dims, axes, &starts, &ends);
+      slice_dims = phi::funcs::GetSliceDims<int>(in_dims, axes, starts, ends,
+                                                 nullptr, nullptr);
+    }
+
+    int in_dim_size = input->dims().size();
+    if (static_cast<int>(axes.size()) != in_dim_size) {
+      std::vector<int> tmp_starts(in_dim_size, 0);
+      const auto& in_dims_vec = phi::vectorize(input->dims());
+      std::vector<int> tmp_ends(in_dims_vec.begin(), in_dims_vec.end());
+      for (size_t i = 0; i < axes.size(); ++i) {
+        tmp_starts[axes[i]] = starts[i];
+        tmp_ends[axes[i]] = ends[i];
+      }
+      starts.swap(tmp_starts);
+      ends.swap(tmp_ends);
+    }
+    std::vector<int> strides(in_dim_size, 1);
+
+    out->mutable_data<T>(ctx.GetPlace());
+
+    MLUCnnlTensorDesc input_desc(*input);
+    MLUCnnlTensorDesc out_desc(slice_dims.size(),
+                               phi::vectorize(slice_dims).data(),
+                               ToCnnlDataType<T>());
+    MLUCnnl::StridedSlice(ctx, starts.data(), ends.data(), strides.data(),
+                          input_desc.get(), GetBasePtr(input), out_desc.get(),
+                          GetBasePtr(out));
+  }
+};
+
+template <typename T>
+class SliceGradMLUKernel : public framework::OpKernel<T> {
+ public:
+  void Compute(const framework::ExecutionContext& ctx) const override {
+    auto* input = ctx.Input<Tensor>("Input");
+    auto* dout = ctx.Input<Tensor>(framework::GradVarName("Out"));
+    auto* dinput = ctx.Output<Tensor>(framework::GradVarName("Input"));
+
+    auto axes = ctx.Attr<std::vector<int>>("axes");
+    auto starts = ctx.Attr<std::vector<int>>("starts");
+    auto ends = ctx.Attr<std::vector<int>>("ends");
+
+    // Get the accurate attribute value of starts and ends
+    auto starts_tensor_list = ctx.MultiInput<Tensor>("StartsTensorList");
+    if (ctx.HasInput("StartsTensor")) {
+      starts = GetDataFromTensor<int>(ctx.Input<Tensor>("StartsTensor"));
+    } else if (starts_tensor_list.size() > 0) {
+      starts = GetDataFromTensorList<int>(starts_tensor_list);
+    }
+
+    auto ends_tensor_list = ctx.MultiInput<Tensor>("EndsTensorList");
+    if (ctx.HasInput("EndsTensor")) {
+      ends = GetDataFromTensor<int>(ctx.Input<Tensor>("EndsTensor"));
+    } else if (ends_tensor_list.size() > 0) {
+      ends = GetDataFromTensorList<int>(ends_tensor_list);
+    }
+
+    const auto& in_dims = input->dims();
+    auto slice_dims = dout->dims();
+    if (slice_dims.size() != in_dims.size()) {
+      phi::funcs::CheckAndUpdateSliceAttrs(in_dims, axes, &starts, &ends);
+      slice_dims = phi::funcs::GetSliceDims<int>(in_dims, axes, starts, ends,
+                                                 nullptr, nullptr);
+    }
+
+    int in_dim_size = input->dims().size();
+    if (static_cast<int>(axes.size()) != in_dim_size) {
+      std::vector<int> tmp_starts(in_dim_size, 0);
+      const auto& in_dims_vec = phi::vectorize(input->dims());
+      std::vector<int> tmp_ends(in_dims_vec.begin(), in_dims_vec.end());
+      for (size_t i = 0; i < axes.size(); ++i) {
+        tmp_starts[axes[i]] = starts[i];
+        tmp_ends[axes[i]] = ends[i];
+      }
+      starts.swap(tmp_starts);
+      ends.swap(tmp_ends);
+    }
+    std::vector<int> strides(in_dim_size, 1);
+
+    dinput->mutable_data<T>(ctx.GetPlace());
+
+    MLUCnnlTensorDesc dout_desc(slice_dims.size(),
+                                phi::vectorize(slice_dims).data(),
+                                ToCnnlDataType<T>());
+    MLUCnnlTensorDesc dinput_desc(*dinput);
+    MLUCnnl::StridedSliceGrad(ctx, starts.data(), ends.data(), strides.data(),
+                              dout_desc.get(), GetBasePtr(dout),
+                              dinput_desc.get(), GetBasePtr(dinput));
+  }
+};
+
+}  // namespace operators
+}  // namespace paddle
+
+namespace ops = paddle::operators;
+
+REGISTER_OP_MLU_KERNEL(slice, ops::SliceMLUKernel<float>,
+                       ops::SliceMLUKernel<int>, ops::SliceMLUKernel<bool>,
+                       ops::SliceMLUKernel<int64_t>,
+                       ops::SliceMLUKernel<double>,
+                       ops::SliceMLUKernel<paddle::platform::float16>);
+
+REGISTER_OP_MLU_KERNEL(slice_grad, ops::SliceGradMLUKernel<float>,
+                       ops::SliceGradMLUKernel<int>,
+                       ops::SliceGradMLUKernel<bool>,
+                       ops::SliceGradMLUKernel<int64_t>,
+                       ops::SliceGradMLUKernel<paddle::platform::float16>);
diff --git a/python/paddle/fluid/tests/unittests/mlu/test_slice_op_mlu.py b/python/paddle/fluid/tests/unittests/mlu/test_slice_op_mlu.py
new file mode 100644
index 0000000000000000000000000000000000000000..44532ddceb7652e6a693b273563b67d3f7f788c0
--- /dev/null
+++ b/python/paddle/fluid/tests/unittests/mlu/test_slice_op_mlu.py
@@ -0,0 +1,631 @@
+#   Copyright (c) 2022 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
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+
+import unittest
+import numpy as np
+import paddle.fluid.core as core
+import sys
+sys.path.append('..')
+from op_test import OpTest
+import paddle.fluid as fluid
+import paddle.fluid.layers as layers
+import paddle
+
+paddle.enable_static()
+
+
+# Situation 1: starts(list, no tensor), ends(list, no tensor)
+# 1.1 without attr(decrease)
+class TestSliceOp(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.set_mlu()
+        self.config()
+        self.inputs = {'Input': self.input}
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            'starts': self.starts,
+            'ends': self.ends,
+            'infer_flags': self.infer_flags
+        }
+
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [3, 3, 4]
+        self.axes = [0, 1, 2]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[1:3, 0:3, 2:4, :]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+    def set_mlu(self):
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+
+
+class TestCase1(TestSliceOp):
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [-3, 0, 2]
+        self.ends = [3, 100, -1]
+        self.axes = [0, 1, 2]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[-3:3, 0:100, 2:-1, :]
+
+
+class TestCase2(TestSliceOp):
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [-3, 0, 2]
+        self.ends = [3, 100, -1]
+        self.axes = [0, 1, 3]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[-3:3, 0:100, :, 2:-1]
+
+
+# 1.2 with attr(decrease)
+class TestSliceOp_decs_dim(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.set_mlu()
+        self.config()
+        self.inputs = {'Input': self.input}
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            'starts': self.starts,
+            'ends': self.ends,
+            'infer_flags': self.infer_flags,
+            'decrease_axis': self.decrease_axis,
+        }
+
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [2, 3, 4]
+        self.axes = [0, 1, 2]
+        self.decrease_axis = [0]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[1, 0:3, 2:4, :]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+    def set_mlu(self):
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+
+
+class TestSliceOp_decs_dim_2(TestSliceOp_decs_dim):
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [2, 1, 4]
+        self.axes = [0, 1, 2]
+        self.decrease_axis = [0, 1]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[1, 0, 2:4, :]
+
+
+class TestSliceOp_decs_dim_3(TestSliceOp_decs_dim):
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [-1, 0, 2]
+        self.ends = [1000000, 1, 4]
+        self.axes = [0, 1, 2]
+        self.decrease_axis = [0, 1]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[-1, 0, 2:4, :]
+
+
+class TestSliceOp_decs_dim_4(TestSliceOp_decs_dim):
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 7]).astype("float32")
+        self.starts = [0, 1, 2, 3]
+        self.ends = [1, 2, 3, 4]
+        self.axes = [0, 1, 2, 3]
+        self.decrease_axis = [0, 1, 2, 3]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[0, 1, 2, 3:4]
+
+
+class TestSliceOp_decs_dim_5(TestSliceOp_decs_dim):
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [-1]
+        self.ends = [1000000]
+        self.axes = [3]
+        self.decrease_axis = [3]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[:, :, :, -1]
+
+
+class TestSliceOp_decs_dim_6(TestSliceOp_decs_dim):
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [0, 1, 2, 3]
+        self.ends = [1, 2, 3, 4]
+        self.axes = [0, 1, 2, 3]
+        self.decrease_axis = [0, 1, 2, 3]
+        self.infer_flags = [1, 1, 1]
+        self.out = self.input[0, 1, 2, 3:4]
+
+
+# Situation 2: starts(list, have tensor), ends(list, no tensor)
+# without attr(decrease)
+class TestSliceOp_starts_ListTensor(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.set_mlu()
+        self.config()
+
+        starts_tensor = []
+        for index, ele in enumerate(self.starts):
+            starts_tensor.append(("x" + str(index), np.ones(
+                (1)).astype('int64') * ele))
+
+        self.inputs = {'Input': self.input, 'StartsTensorList': starts_tensor}
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            'starts': self.starts_infer,
+            'ends': self.ends,
+            'infer_flags': self.infer_flags
+        }
+
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [3, 3, 4]
+        self.axes = [0, 1, 2]
+        self.infer_flags = [-1, 1, -1]
+        self.out = self.input[1:3, 0:3, 2:4, :]
+
+        self.starts_infer = [-1, 0, -1]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+    def set_mlu(self):
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+
+
+# Situation 2: starts(list, have tensor), ends(list, no tensor)
+#  with attr(decrease)
+class TestSliceOp_decs_dim_starts_ListTensor(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.set_mlu()
+        self.config()
+
+        starts_tensor = []
+        for index, ele in enumerate(self.starts):
+            starts_tensor.append(("x" + str(index), np.ones(
+                (1)).astype('int32') * ele))
+
+        self.inputs = {'Input': self.input, 'StartsTensorList': starts_tensor}
+
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            'starts': self.starts_infer,
+            'ends': self.ends,
+            'infer_flags': self.infer_flags,
+            'decrease_axis': self.decrease_axis,
+        }
+
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [2, 3, 4]
+        self.axes = [0, 1, 2]
+        self.decrease_axis = [0]
+        self.infer_flags = [1, -1, 1]
+        self.out = self.input[1, 0:3, 2:4, :]
+
+        self.starts_infer = [1, -1, 2]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+    def set_mlu(self):
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+
+
+class TestSliceOp_decs_dim_5_starts_ListTensor(
+        TestSliceOp_decs_dim_starts_ListTensor):
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [-1]
+        self.ends = [1000000]
+        self.axes = [3]
+        self.decrease_axis = [3]
+        self.infer_flags = [-1]
+        self.out = self.input[:, :, :, -1]
+
+        self.starts_infer = [-1]
+
+
+# Situation 3: starts(tensor), ends(list, no tensor)
+# with attr(decrease)
+class TestSliceOp_decs_dim_starts_OneTensor(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+        self.config()
+        self.inputs = {
+            'Input': self.input,
+            "StartsTensor": np.array(
+                self.starts, dtype="int32")
+        }
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            #'starts': self.starts,
+            'ends': self.ends,
+            'infer_flags': self.infer_flags,
+            'decrease_axis': self.decrease_axis,
+        }
+
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [2, 3, 4]
+        self.axes = [0, 1, 2]
+        self.decrease_axis = [0]
+        self.infer_flags = [-1, -1, -1]
+        self.out = self.input[1, 0:3, 2:4, :]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+
+# Situation 4: starts(tensor), ends(tensor)
+# without attr(decrease)
+class TestSliceOp_starts_OneTensor_ends_OneTensor(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+        self.config()
+
+        self.inputs = {
+            'Input': self.input,
+            "StartsTensor": np.array(
+                self.starts, dtype="int64"),
+            "EndsTensor": np.array(
+                self.ends, dtype="int32")
+        }
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            #'starts': self.starts,
+            #'ends': self.ends_infer,
+            'infer_flags': self.infer_flags
+        }
+
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [3, 3, 4]
+        self.axes = [0, 1, 2]
+        self.infer_flags = [-1, -1, -1]
+        self.out = self.input[1:3, 0:3, 2:4, :]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+
+# Situation 5: starts(tensor), ends(tensor)
+#  with attr(decrease)
+class TestSliceOp_decs_dim_starts_and_ends_OneTensor(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+        self.config()
+        self.inputs = {
+            'Input': self.input,
+            "StartsTensor": np.array(
+                self.starts, dtype="int32"),
+            "EndsTensor": np.array(
+                self.ends, dtype="int32")
+        }
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            #'starts': self.starts,
+            #'ends': self.ends,
+            'infer_flags': self.infer_flags,
+            'decrease_axis': self.decrease_axis,
+        }
+
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [2, 1, 4]
+        self.axes = [0, 1, 2]
+        self.decrease_axis = [0, 1]
+        self.infer_flags = [-1, -1, -1]
+        self.out = self.input[1, 0, 2:4, :]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+
+# Situation 6: starts(tensor), ends(list, have tensor)
+# without attr(decrease)
+class TestSliceOp_starts_OneTensor_ends_ListTensor(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+        self.config()
+
+        ends_tensor = []
+        for index, ele in enumerate(self.ends):
+            ends_tensor.append(("y" + str(index), np.ones(
+                (1)).astype('int32') * ele))
+
+        self.inputs = {
+            'Input': self.input,
+            "StartsTensor": np.array(
+                self.starts, dtype="int32"),
+            'EndsTensorList': ends_tensor
+        }
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            #'starts': self.starts,
+            'ends': self.ends_infer,
+            'infer_flags': self.infer_flags
+        }
+
+    def config(self):
+        self.input = np.random.random([3, 4, 5, 6]).astype("float32")
+        self.starts = [1, 0, 2]
+        self.ends = [3, 3, 4]
+        self.axes = [0, 1, 2]
+        self.infer_flags = [-1, -1, -1]
+        self.out = self.input[1:3, 0:3, 2:4, :]
+
+        self.ends_infer = [-1, 3, 4]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+
+# Test float16
+class TestFP16(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+        self.config()
+        self.inputs = {'Input': self.input}
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            'starts': self.starts,
+            'ends': self.ends,
+            'infer_flags': self.infer_flags
+        }
+
+    def config(self):
+        self.dtype = "float16"
+        self.input = np.random.random([3, 4, 5, 6]).astype(self.dtype)
+        self.starts = [-3, 0, 2]
+        self.ends = [3, 100, -1]
+        self.axes = [0, 1, 3]
+        self.out = self.input[-3:3, 0:100, :, 2:-1]
+        self.infer_flags = [1, 1, 1]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place, atol=1e-5)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'], 'Out', max_relative_error=0.006)
+
+
+class TestFP16_2(OpTest):
+    def setUp(self):
+        self.op_type = "slice"
+        self.__class__.use_mlu = True
+        self.place = paddle.MLUPlace(0)
+        self.config()
+        self.inputs = {'Input': self.input}
+        self.outputs = {'Out': self.out}
+        self.attrs = {
+            'axes': self.axes,
+            'starts': self.starts,
+            'ends': self.ends,
+            'infer_flags': self.infer_flags
+        }
+
+    def config(self):
+        self.dtype = "float16"
+        self.input = np.random.random([3, 4, 10]).astype(self.dtype)
+        self.starts = [0]
+        self.ends = [1]
+        self.axes = [1]
+        self.out = self.input[:, 0:1, :]
+        self.infer_flags = [1]
+
+    def test_check_output(self):
+        self.check_output_with_place(self.place, atol=1e-5)
+
+    def test_check_grad_normal(self):
+        self.check_grad_with_place(
+            self.place, ['Input'],
+            'Out',
+            max_relative_error=0.006,
+            numeric_grad_delta=0.5)
+
+
+class TestSliceApiWithTensor(unittest.TestCase):
+    def test_starts_ends_is_tensor(self):
+        with paddle.fluid.dygraph.guard():
+            a = paddle.rand(shape=[4, 5, 6], dtype='float32')
+            axes = [0, 1, 2]
+            starts = [-3, 0, 2]
+            ends = [3, 2, 4]
+            a_1 = paddle.slice(
+                a,
+                axes=axes,
+                starts=paddle.to_tensor(
+                    starts, dtype='int32'),
+                ends=paddle.to_tensor(
+                    ends, dtype='int32'))
+            a_2 = paddle.slice(a, axes=axes, starts=starts, ends=ends)
+
+            self.assertTrue(np.array_equal(a_1.numpy(), a_2.numpy()))
+
+    def test_bool_tensor(self):
+        with paddle.fluid.dygraph.guard():
+            array = (np.arange(60).reshape([3, 4, 5]) % 3).astype('bool')
+            tt = paddle.to_tensor(array)
+            tt.stop_gradient = False
+
+            starts = [0, 1, 2]
+            ends = [3, 5, 4]
+            axes = [0, 1, 2]
+
+            y_paddle = paddle.slice(tt, axes, starts, ends)
+            y_np = tt[0:3, 1:5, 2:4]
+
+            self.assertTrue(paddle.bool == y_paddle.dtype)
+            self.assertTrue(np.array_equal(y_paddle.numpy(), y_np))
+
+
+class TestImperativeVarBaseGetItem(unittest.TestCase):
+    def test_getitem_with_long(self):
+        with fluid.dygraph.guard():
+            data = np.random.random((2, 80, 16128)).astype('float32')
+            var = fluid.dygraph.to_variable(data)
+            sliced = var[:, 10:, :var.shape[1]]  # var.shape[1] is 80L here
+            self.assertEqual(sliced.shape, [2, 70, 80])
+
+            sliced = var[:, var.shape[0]:, var.shape[0]:var.shape[1]]
+            self.assertEqual(sliced.shape, [2, 78, 78])
+
+    def test_getitem_with_float(self):
+        def test_float_in_slice_item():
+            with fluid.dygraph.guard():
+                data = np.random.random((2, 80, 16128)).astype('float32')
+                var = fluid.dygraph.to_variable(data)
+                sliced = var[:, 1.1:, :var.shape[1]]
+
+        self.assertRaises(Exception, test_float_in_slice_item)
+
+        def test_float_in_index():
+            with fluid.dygraph.guard():
+                data = np.random.random((2, 80, 16128)).astype('float32')
+                var = fluid.dygraph.to_variable(data)
+                sliced = var[1.1]
+
+        self.assertRaises(Exception, test_float_in_index)
+
+
+class TestInferShape(unittest.TestCase):
+    def test(self):
+        x = paddle.ones(shape=[3, 4, 5])
+        x.desc.set_shape([3, -1, 5])
+        self.assertEqual(x.shape, (3, -1, 5))
+
+        out0 = paddle.slice(x, axes=[1], starts=[0], ends=[3])
+        self.assertEqual(out0.shape, (3, 3, 5))
+
+    def test_axis_less_than_zero(self):
+
+        # Using paddle.disable_static will make other unittests fail.
+        with fluid.dygraph.guard():
+            x_arr = np.arange(0, 24, dtype=np.float32).reshape([2, 3, 4])
+            x = paddle.to_tensor(x_arr)
+
+            pp_slice = paddle.slice(x, [100, ], [0], [1])
+            np_slice = x_arr[:, :, 0:1]
+            self.assertTrue(np.array_equal(pp_slice, np_slice))
+
+            pp_slice = paddle.slice(x, (-100, ), [0], [1])
+            np_slice = x_arr[0:1]
+            self.assertTrue(np.array_equal(pp_slice, np_slice))
+
+            x_arr = np.array([], dtype=np.float32)
+            x = paddle.to_tensor(np.reshape(x_arr, (0, 0, 0)))
+
+            starts = paddle.to_tensor(
+                np.reshape(
+                    np.array(
+                        [], dtype=np.int32), (0, )))
+            ends = paddle.to_tensor(
+                np.reshape(
+                    np.array(
+                        [], dtype=np.int32), (0, )))
+
+            with self.assertRaises(ValueError):
+                paddle.slice(x, [-1000000], starts, ends)
+
+            with self.assertRaises(ValueError):
+                paddle.slice(x, [1000000], starts, ends)
+
+            with self.assertRaises(ValueError):
+                paddle.slice(x, [], starts, ends)
+
+            with self.assertRaises(ValueError):
+                paddle.slice(x, 0, starts, ends)
+
+
+if __name__ == '__main__':
+    unittest.main()