diff --git a/lite/backends/x86/math/CMakeLists.txt b/lite/backends/x86/math/CMakeLists.txt
index 5cc4a9f0770e79683197bce0bb83336b8c79c364..2dea4364d5ee2d11d6d266935fad2a1180954369 100644
--- a/lite/backends/x86/math/CMakeLists.txt
+++ b/lite/backends/x86/math/CMakeLists.txt
@@ -32,8 +32,8 @@ math_library(sampler)
 math_library(gru_compute DEPS activation_functions math_function)
 math_library(lstm_compute DEPS activation_functions)
 
-lite_cc_library(blas SRCS blas.cc DEPS cblas framework_proto eigen3)
-math_library(math_function DEPS blas)
+lite_cc_library(blas SRCS blas.cc DEPS cblas framework_proto eigen3 dynload_mklml)
+math_library(math_function DEPS blas dynload_mklml)
 math_library(maxouting)
 math_library(pooling)
 math_library(selected_rows_functor DEPS selected_rows math_function blas)
diff --git a/lite/kernels/x86/CMakeLists.txt b/lite/kernels/x86/CMakeLists.txt
index 60219e3b18665280ece5c0b77723bc311cb8eebd..6d47c880c8daf1ec8981dfb4083324b79c25cec1 100644
--- a/lite/kernels/x86/CMakeLists.txt
+++ b/lite/kernels/x86/CMakeLists.txt
@@ -1,4 +1,4 @@
-add_kernel(activation_compute_x86 X86 basic SRCS activation_compute.cc DEPS ${lite_kernel_deps} activation_ops)
+add_kernel(activation_compute_x86 X86 basic SRCS activation_compute.cc DEPS ${lite_kernel_deps} activation_ops math_function)
 # lite_cc_library(mean_compute_x86 SRCS mean_compute.cc DEPS ${lite_kernel_deps})
 # lite_cc_library(fill_constant_compute_x86 SRCS fill_constant_compute.cc DEPS ${lite_kernel_deps})
 # lite_cc_library(sgd_compute_x86 SRCS sgd_compute.cc DEPS ${lite_kernel_deps})
@@ -55,6 +55,8 @@ lite_cc_test(test_batch_norm_compute_x86 SRCS batch_norm_compute_test.cc DEPS ba
 lite_cc_test(test_softmax_compute_x86 SRCS softmax_compute_test.cc DEPS softmax_compute_x86)
 lite_cc_test(test_elementwise_compute_x86 SRCS elementwise_compute_test.cc DEPS elementwise_compute_x86)
 lite_cc_test(test_relu_compute_x86 SRCS relu_compute_test.cc DEPS activation_compute_x86)
+lite_cc_test(test_tanh_compute_x86 SRCS tanh_compute_test.cc DEPS activation_compute_x86)
+lite_cc_test(test_gelu_compute_x86 SRCS gelu_compute_test.cc DEPS activation_compute_x86)
 lite_cc_test(test_sequence_expand_as_compute_x86 SRCS sequence_expand_as_compute_test.cc DEPS sequence_expand_as_compute_x86)
 lite_cc_test(test_gru_compute_x86 SRCS gru_compute_test.cc DEPS gru_compute_x86)
 lite_cc_test(test_matmul_compute_x86 SRCS matmul_compute_test.cc DEPS matmul_compute_x86)
diff --git a/lite/kernels/x86/activation_compute.cc b/lite/kernels/x86/activation_compute.cc
index 0ed09c43a5df9a087e5a21c6c9566b7b785a5afa..b4a053419c5c6f04b4b053d7bf902a57e9562518 100644
--- a/lite/kernels/x86/activation_compute.cc
+++ b/lite/kernels/x86/activation_compute.cc
@@ -35,3 +35,25 @@ REGISTER_LITE_KERNEL(relu,
     .BindInput("X", {LiteType::GetTensorTy(TARGET(kX86))})
     .BindOutput("Out", {LiteType::GetTensorTy(TARGET(kX86))})
     .Finalize();
+
+// float
+REGISTER_LITE_KERNEL(tanh,
+                     kX86,
+                     kFloat,
+                     kNCHW,
+                     paddle::lite::kernels::x86::TanhCompute<float>,
+                     def)
+    .BindInput("X", {LiteType::GetTensorTy(TARGET(kX86))})
+    .BindOutput("Out", {LiteType::GetTensorTy(TARGET(kX86))})
+    .Finalize();
+
+// float
+REGISTER_LITE_KERNEL(gelu,
+                     kX86,
+                     kFloat,
+                     kNCHW,
+                     paddle::lite::kernels::x86::GeluCompute<float>,
+                     def)
+    .BindInput("X", {LiteType::GetTensorTy(TARGET(kX86))})
+    .BindOutput("Out", {LiteType::GetTensorTy(TARGET(kX86))})
+    .Finalize();
diff --git a/lite/kernels/x86/activation_compute.h b/lite/kernels/x86/activation_compute.h
index 27752401949a30234a36854260793a33b4487eba..482684b0672c1ed7f0d571f852e134e92ddcaafa 100644
--- a/lite/kernels/x86/activation_compute.h
+++ b/lite/kernels/x86/activation_compute.h
@@ -13,8 +13,10 @@
 // limitations under the License.
 #pragma once
 
+#include <algorithm>
 #include <utility>
 #include <vector>
+#include "lite/backends/x86/math/blas.h"
 #include "lite/core/kernel.h"
 #include "lite/core/op_lite.h"
 #include "lite/core/op_registry.h"
@@ -115,6 +117,76 @@ class ReluCompute : public KernelLite<TARGET(kX86), PRECISION(kFloat)> {
   virtual ~ReluCompute() = default;
 };
 
+// tanh(x) = (exp(x) - exp(-x)) / (exp(x) + exp(-x))
+template <typename T>
+struct TanhFunctor : public BaseActivationFunctor<T> {
+  template <typename Device, typename X, typename Out>
+  void operator()(Device d, X x, Out out) const {
+    out.device(d) = x.tanh();
+  }
+};
+
+template <typename T>
+class TanhCompute : public KernelLite<TARGET(kX86), PRECISION(kFloat)> {
+ public:
+  using param_t = operators::ActivationParam;
+
+  void Run() override {
+    auto& param = *param_.get_mutable<operators::ActivationParam>();
+
+    param.Out->template mutable_data<T>();
+    Activate<TanhFunctor<T>>(param.X, param.Out);
+  }
+
+  virtual ~TanhCompute() = default;
+};
+
+// gelu(x) = 0.5 * x *  (1 + erf(x / sqrt(2)))
+template <typename T>
+struct GeluFunctor : public BaseActivationFunctor<T> {
+  template <typename Device, typename X, typename Out>
+  void operator()(Device d, X x, Out out) const {
+// Because the execute or device context can not be deliver here, it keep the
+// marco for NVCC.
+#if defined(PADDLE_WITH_MKLML) && !defined(_WIN32) && !defined(__APPLE__) && \
+    !defined(__OSX__) && !defined(PADDLE_WITH_CUDA)
+    auto x_data = x.data();
+    auto out_data = out.data();
+    int n = std::min(x.size(), out.size());
+
+    std::memset(out_data, 0, n * sizeof(T));
+    paddle::lite::x86::math::CBlas<T>::AXPY(
+        n, static_cast<T>(M_SQRT1_2), x_data, 1, out_data, 1);
+    paddle::lite::x86::math::CBlas<T>::VMERF(n, out_data, out_data, VML_LA);
+    for (int i = 0; i < n; i++) {
+      out_data[i] += static_cast<T>(1);
+    }
+    paddle::lite::x86::math::CBlas<T>::VMUL(n, x_data, out_data, out_data);
+    for (int i = 0; i < n; i++) {
+      out_data[i] *= static_cast<T>(0.5);
+    }
+#else
+    auto temp = (x * static_cast<T>(M_SQRT1_2)).erf();
+    out.device(d) = x * static_cast<T>(0.5) * (static_cast<T>(1) + temp);
+#endif
+  }
+};
+
+template <typename T>
+class GeluCompute : public KernelLite<TARGET(kX86), PRECISION(kFloat)> {
+ public:
+  using param_t = operators::ActivationParam;
+
+  void Run() override {
+    auto& param = *param_.get_mutable<operators::ActivationParam>();
+
+    param.Out->template mutable_data<T>();
+    Activate<GeluFunctor<T>>(param.X, param.Out);
+  }
+
+  virtual ~GeluCompute() = default;
+};
+
 }  // namespace x86
 }  // namespace kernels
 }  // namespace lite
diff --git a/lite/kernels/x86/gelu_compute_test.cc b/lite/kernels/x86/gelu_compute_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..20479760e916613f14745d8b7316e094950f6a46
--- /dev/null
+++ b/lite/kernels/x86/gelu_compute_test.cc
@@ -0,0 +1,92 @@
+// Copyright (c) 2019 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 <gtest/gtest.h>
+#include <iostream>
+#include <memory>
+#include <utility>
+#include <vector>
+#include "lite/core/op_registry.h"
+#include "lite/kernels/x86/activation_compute.cc"
+
+namespace paddle {
+namespace lite {
+namespace kernels {
+namespace x86 {
+
+TEST(gelu_x86, retrive_op) {
+  auto gelu =
+      KernelRegistry::Global().Create<TARGET(kX86), PRECISION(kFloat)>("gelu");
+  ASSERT_FALSE(gelu.empty());
+  ASSERT_TRUE(gelu.front());
+}
+
+TEST(gelu_x86, init) {
+  GeluCompute<float> gelu;
+  ASSERT_EQ(gelu.precision(), PRECISION(kFloat));
+  ASSERT_EQ(gelu.target(), TARGET(kX86));
+}
+
+TEST(gelu_x86, run_test) {
+  lite::Tensor x, out;
+  constexpr int batch_size = 1;
+  std::vector<int64_t> x_shape{batch_size, 3, 2, 2};
+  x.Resize(lite::DDim(x_shape));
+  std::vector<int64_t> out_shape{batch_size, 3, 2, 2};
+  out.Resize(lite::DDim(out_shape));
+
+  auto x_data = x.mutable_data<float>();
+  auto out_data = out.mutable_data<float>();
+
+  for (int64_t i = 0; i < x.dims().production(); i++) {
+    int sign = i % 2 == 0 ? 1 : -1;
+    x_data[i] = static_cast<float>(i * sign) * 0.8f;
+  }
+  // GeluCompute gelu;
+  GeluCompute<float> gelu;
+  operators::ActivationParam param;
+
+  param.X = &x;
+  param.Out = &out;
+  std::unique_ptr<KernelContext> ctx(new KernelContext);
+  ctx->As<X86Context>();
+  gelu.SetContext(std::move(ctx));
+  gelu.SetParam(param);
+  gelu.Run();
+
+  LOG(INFO) << "output: ";
+  std::vector<float> ref_data{0.,
+                              -0.169484,
+                              1.512321,
+                              -0.019674,
+                              3.197801,
+                              -0.000126719,
+                              4.8,
+                              -0.,
+                              6.4000001,
+                              -0.,
+                              8.,
+                              -0.};
+  for (int i = 0; i < out.dims().production(); i++) {
+    LOG(INFO) << out_data[i];
+    EXPECT_NEAR(out_data[i], ref_data[i], 1e-5);
+  }
+}
+
+}  // namespace x86
+}  // namespace kernels
+}  // namespace lite
+}  // namespace paddle
+
+USE_LITE_KERNEL(gelu, kX86, kFloat, kNCHW, def);
diff --git a/lite/kernels/x86/tanh_compute_test.cc b/lite/kernels/x86/tanh_compute_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..fa65ca02df27642fc0114a075ad8a4249f3b70de
--- /dev/null
+++ b/lite/kernels/x86/tanh_compute_test.cc
@@ -0,0 +1,92 @@
+// Copyright (c) 2019 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 <gtest/gtest.h>
+#include <iostream>
+#include <memory>
+#include <utility>
+#include <vector>
+#include "lite/core/op_registry.h"
+#include "lite/kernels/x86/activation_compute.cc"
+
+namespace paddle {
+namespace lite {
+namespace kernels {
+namespace x86 {
+
+TEST(tanh_x86, retrive_op) {
+  auto tanh =
+      KernelRegistry::Global().Create<TARGET(kX86), PRECISION(kFloat)>("tanh");
+  ASSERT_FALSE(tanh.empty());
+  ASSERT_TRUE(tanh.front());
+}
+
+TEST(tanh_x86, init) {
+  TanhCompute<float> tanh;
+  ASSERT_EQ(tanh.precision(), PRECISION(kFloat));
+  ASSERT_EQ(tanh.target(), TARGET(kX86));
+}
+
+TEST(tanh_x86, run_test) {
+  lite::Tensor x, out;
+  constexpr int batch_size = 1;
+  std::vector<int64_t> x_shape{batch_size, 3, 2, 2};
+  x.Resize(lite::DDim(x_shape));
+  std::vector<int64_t> out_shape{batch_size, 3, 2, 2};
+  out.Resize(lite::DDim(out_shape));
+
+  auto x_data = x.mutable_data<float>();
+  auto out_data = out.mutable_data<float>();
+
+  for (int64_t i = 0; i < x.dims().production(); i++) {
+    int sign = i % 2 == 0 ? 1 : -1;
+    x_data[i] = static_cast<float>(i * sign) * 0.08f;
+  }
+  // TanhCompute tanh;
+  TanhCompute<float> tanh;
+  operators::ActivationParam param;
+
+  param.X = &x;
+  param.Out = &out;
+  std::unique_ptr<KernelContext> ctx(new KernelContext);
+  ctx->As<X86Context>();
+  tanh.SetContext(std::move(ctx));
+  tanh.SetParam(param);
+  tanh.Run();
+
+  LOG(INFO) << "output: ";
+  std::vector<float> ref_data{0.,
+                              -0.079829,
+                              0.158648,
+                              -0.235495,
+                              0.309506,
+                              -0.379949,
+                              0.446243,
+                              -0.507977,
+                              0.564899,
+                              -0.616909,
+                              0.664036,
+                              -0.706419};
+  for (int i = 0; i < out.dims().production(); i++) {
+    LOG(INFO) << out_data[i];
+    EXPECT_NEAR(out_data[i], ref_data[i], 1e-5);
+  }
+}
+
+}  // namespace x86
+}  // namespace kernels
+}  // namespace lite
+}  // namespace paddle
+
+USE_LITE_KERNEL(tanh, kX86, kFloat, kNCHW, def);