diff --git a/lite/kernels/arm/calib_compute.cc b/lite/kernels/arm/calib_compute.cc
index 383e868843b43f4081e1eac330b1422b79307d9c..c0b7405015916dc62fbd89cc3c95b3d14bbd2ed5 100644
--- a/lite/kernels/arm/calib_compute.cc
+++ b/lite/kernels/arm/calib_compute.cc
@@ -44,6 +44,17 @@ void CalibComputeInt64ToInt32<DLType>::Run() {
   }
 }
 
+template <DataLayoutType DLType>
+void CalibComputeInt64ToFloat32<DLType>::Run() {
+  auto& param = this->template Param<operators::CalibParam>();
+  const auto* din = param.input->template data<int64_t>();
+  std::vector<float> scale = {param.scale};
+  auto* dout = param.output->template mutable_data<float>();
+  for (auto i = 0; i < param.input->numel(); ++i) {
+    dout[i] = din[i];
+  }
+}
+
 template <DataLayoutType DLType>
 void CalibComputeInt8ToFp32<DLType>::Run() {
   auto& param = this->template Param<operators::CalibParam>();
@@ -133,6 +144,40 @@ REGISTER_LITE_KERNEL(
                                        DATALAYOUT(kNCHW))})
     .Finalize();
 
+REGISTER_LITE_KERNEL(
+    calib,
+    kARM,
+    kFloat,
+    kNCHW,
+    paddle::lite::kernels::arm::CalibComputeInt64ToFloat32<DATALAYOUT(kNCHW)>,
+    int64_to_float32)
+    .BindInput("Input",
+               {LiteType::GetTensorTy(TARGET(kAny),
+                                      PRECISION(kInt64),
+                                      DATALAYOUT(kNCHW))})
+    .BindOutput("Out",
+                {LiteType::GetTensorTy(TARGET(kARM),
+                                       PRECISION(kFloat),
+                                       DATALAYOUT(kNCHW))})
+    .Finalize();
+
+REGISTER_LITE_KERNEL(
+    calib,
+    kARM,
+    kInt64,
+    kNCHW,
+    paddle::lite::kernels::arm::CalibComputeInt64ToFloat32<DATALAYOUT(kNCHW)>,
+    int64_to_float32)
+    .BindInput("Input",
+               {LiteType::GetTensorTy(TARGET(kHost),
+                                      PRECISION(kInt64),
+                                      DATALAYOUT(kNCHW))})
+    .BindOutput("Out",
+                {LiteType::GetTensorTy(TARGET(kARM),
+                                       PRECISION(kFloat),
+                                       DATALAYOUT(kNCHW))})
+    .Finalize();
+
 REGISTER_LITE_KERNEL(
     calib_once,
     kARM,
@@ -206,3 +251,37 @@ REGISTER_LITE_KERNEL(
                                        PRECISION(kInt32),
                                        DATALAYOUT(kNCHW))})
     .Finalize();
+
+REGISTER_LITE_KERNEL(
+    calib_once,
+    kARM,
+    kFloat,
+    kNCHW,
+    paddle::lite::kernels::arm::CalibComputeInt64ToFloat32<DATALAYOUT(kNCHW)>,
+    int64_to_float32)
+    .BindInput("Input",
+               {LiteType::GetTensorTy(TARGET(kARM),
+                                      PRECISION(kInt64),
+                                      DATALAYOUT(kNCHW))})
+    .BindOutput("Out",
+                {LiteType::GetTensorTy(TARGET(kARM),
+                                       PRECISION(kFloat),
+                                       DATALAYOUT(kNCHW))})
+    .Finalize();
+
+REGISTER_LITE_KERNEL(
+    calib_once,
+    kARM,
+    kInt64,
+    kNCHW,
+    paddle::lite::kernels::arm::CalibComputeInt64ToFloat32<DATALAYOUT(kNCHW)>,
+    int64_to_float32)
+    .BindInput("Input",
+               {LiteType::GetTensorTy(TARGET(kHost),
+                                      PRECISION(kInt64),
+                                      DATALAYOUT(kNCHW))})
+    .BindOutput("Out",
+                {LiteType::GetTensorTy(TARGET(kARM),
+                                       PRECISION(kFloat),
+                                       DATALAYOUT(kNCHW))})
+    .Finalize();
diff --git a/lite/kernels/arm/calib_compute.h b/lite/kernels/arm/calib_compute.h
index f10bb931df9b276bc3bb01da16906f3e5b5a7dce..365c1815bf7867131dabcfbeb251cad70153562e 100644
--- a/lite/kernels/arm/calib_compute.h
+++ b/lite/kernels/arm/calib_compute.h
@@ -47,6 +47,19 @@ class CalibComputeInt64ToInt32
  private:
 };
 
+template <DataLayoutType DLType>
+class CalibComputeInt64ToFloat32
+    : public KernelLite<TARGET(kARM), PRECISION(kInt64), DLType> {
+ public:
+  using param_t = operators::CalibParam;
+
+  void Run() override;
+
+  ~CalibComputeInt64ToFloat32() override{};
+
+ private:
+};
+
 template <DataLayoutType DLType>
 class CalibComputeInt8ToFp32
     : public KernelLite<TARGET(kARM), PRECISION(kInt8), DLType> {