diff --git a/source/module_hamilt_general/operator.cpp b/source/module_hamilt_general/operator.cpp
index f758b3b79a..e48e46cfcb 100644
--- a/source/module_hamilt_general/operator.cpp
+++ b/source/module_hamilt_general/operator.cpp
@@ -1,4 +1,5 @@
 #include "module_hamilt_general/operator.h"
+#include "module_base/timer.h"
 
 using namespace hamilt;
 
@@ -34,10 +35,42 @@ Operator<FPTYPE, Device>::~Operator()
 }
 
 template<typename FPTYPE, typename Device>
-typename Operator<FPTYPE, Device>::hpsi_info Operator<FPTYPE, Device>::hPsi(hpsi_info&) const 
+typename Operator<FPTYPE, Device>::hpsi_info Operator<FPTYPE, Device>::hPsi(hpsi_info& input) const
 {
-    ModuleBase::WARNING_QUIT("Operator::hPsi", "hPsi error!");
-    return hpsi_info(nullptr, 0, nullptr);
+    ModuleBase::timer::tick("Operator", "hPsi");
+    using syncmem_op = psi::memory::synchronize_memory_op<FPTYPE, Device, Device>;
+    auto psi_input = std::get<0>(input);
+    std::tuple<const FPTYPE*, int> psi_info = psi_input->to_range(std::get<1>(input));
+    int nbands = std::get<1>(psi_info);
+
+    FPTYPE* tmhpsi = this->get_hpsi(input);
+    const FPTYPE* tmpsi_in = std::get<0>(psi_info);
+    //if range in hpsi_info is illegal, the first return of to_range() would be nullptr
+    if (tmpsi_in == nullptr)
+    {
+        ModuleBase::WARNING_QUIT("Operator", "please choose correct range of psi for hPsi()!");
+    }
+
+    this->act(nbands, psi_input->get_nbasis(), psi_input->npol, tmpsi_in, tmhpsi, psi_input->get_ngk(this->ik));
+    Operator* node((Operator*)this->next_op);
+    while (node != nullptr)
+    {
+        node->act(nbands, psi_input->get_nbasis(), psi_input->npol, tmpsi_in, tmhpsi, psi_input->get_ngk(node->ik));
+        node = (Operator*)(node->next_op);
+    }
+
+    ModuleBase::timer::tick("Operator", "hPsi");
+
+    //if in_place, copy temporary hpsi to target hpsi_pointer, then delete hpsi and new a wrapper for return
+    FPTYPE* hpsi_pointer = std::get<2>(input);
+    if (this->in_place)
+    {
+        // ModuleBase::GlobalFunc::COPYARRAY(this->hpsi->get_pointer(), hpsi_pointer, this->hpsi->size());
+        syncmem_op()(this->ctx, this->ctx, hpsi_pointer, this->hpsi->get_pointer(), this->hpsi->size());
+        delete this->hpsi;
+        this->hpsi = new psi::Psi<FPTYPE, Device>(hpsi_pointer, *psi_input, 1, nbands / psi_input->npol);
+    }
+    return hpsi_info(this->hpsi, psi::Range(1, 0, 0, nbands / psi_input->npol), hpsi_pointer);
 }
 
 template<typename FPTYPE, typename Device>
diff --git a/source/module_hamilt_general/operator.h b/source/module_hamilt_general/operator.h
index 230510012f..5d44660346 100644
--- a/source/module_hamilt_general/operator.h
+++ b/source/module_hamilt_general/operator.h
@@ -38,7 +38,10 @@ class Operator
     //this is the core function for Operator
     // do H|psi> from input |psi> , 
 
-    // output of hpsi would be first member of the returned tuple 
+    /// as default, different operators donate hPsi independently
+    /// run this->act function for the first operator and run all act() for other nodes in chain table 
+    /// if this procedure is not suitable for your operator, just override this function.
+    /// output of hpsi would be first member of the returned tuple 
     typedef std::tuple<const psi::Psi<FPTYPE, Device>*, const psi::Range, FPTYPE*> hpsi_info;
     virtual hpsi_info hPsi(hpsi_info& input)const;
 
diff --git a/source/module_hamilt_pw/hamilt_pwdft/operator_pw/operator_pw.cpp b/source/module_hamilt_pw/hamilt_pwdft/operator_pw/operator_pw.cpp
index 37fda9c761..7951441875 100644
--- a/source/module_hamilt_pw/hamilt_pwdft/operator_pw/operator_pw.cpp
+++ b/source/module_hamilt_pw/hamilt_pwdft/operator_pw/operator_pw.cpp
@@ -7,45 +7,6 @@ using namespace hamilt;
 template<typename FPTYPE, typename Device>
 OperatorPW<FPTYPE, Device>::~OperatorPW(){};
 
-template<typename FPTYPE, typename Device>
-typename OperatorPW<FPTYPE, Device>::hpsi_info OperatorPW<FPTYPE, Device>::hPsi(
-    hpsi_info& input) const 
-{
-  ModuleBase::timer::tick("OperatorPW", "hPsi");
-  auto psi_input = std::get<0>(input);
-  std::tuple<const std::complex<FPTYPE>*, int> psi_info = psi_input->to_range(std::get<1>(input));
-  int nbands = std::get<1>(psi_info);
-
-  std::complex<FPTYPE> *tmhpsi = this->get_hpsi(input);
-  const std::complex<FPTYPE> *tmpsi_in = std::get<0>(psi_info);
-  //if range in hpsi_info is illegal, the first return of to_range() would be nullptr
-  if(tmpsi_in == nullptr)
-  {
-      ModuleBase::WARNING_QUIT("OperatorPW", "please choose correct range of psi for hPsi()!");
-  }
-
-  this->act(nbands, psi_input->get_nbasis(), psi_input->npol, tmpsi_in, tmhpsi, psi_input->get_ngk(this->ik));
-  OperatorPW* node((OperatorPW*)this->next_op);
-  while(node != nullptr)
-  {
-      node->act(nbands, psi_input->get_nbasis(), psi_input->npol, tmpsi_in, tmhpsi, psi_input->get_ngk(node->ik));
-      node = (OperatorPW*)(node->next_op);
-  }
-
-  ModuleBase::timer::tick("OperatorPW", "hPsi");
-  
-  //if in_place, copy temporary hpsi to target hpsi_pointer, then delete hpsi and new a wrapper for return
-  std::complex<FPTYPE>* hpsi_pointer = std::get<2>(input);
-  if(this->in_place)
-  {
-      // ModuleBase::GlobalFunc::COPYARRAY(this->hpsi->get_pointer(), hpsi_pointer, this->hpsi->size());
-      syncmem_complex_op()(this->ctx, this->ctx, hpsi_pointer, this->hpsi->get_pointer(), this->hpsi->size());
-      delete this->hpsi;
-      this->hpsi = new psi::Psi<std::complex<FPTYPE>, Device>(hpsi_pointer, *psi_input, 1, nbands / psi_input->npol);
-  }      
-  return hpsi_info(this->hpsi, psi::Range(1, 0, 0, nbands / psi_input->npol), hpsi_pointer);
-}
-
 namespace hamilt {
 template class OperatorPW<float, psi::DEVICE_CPU>;
 template class OperatorPW<double, psi::DEVICE_CPU>;
diff --git a/source/module_hamilt_pw/hamilt_pwdft/operator_pw/operator_pw.h b/source/module_hamilt_pw/hamilt_pwdft/operator_pw/operator_pw.h
index d7e5069eaa..580c85bf47 100644
--- a/source/module_hamilt_pw/hamilt_pwdft/operator_pw/operator_pw.h
+++ b/source/module_hamilt_pw/hamilt_pwdft/operator_pw/operator_pw.h
@@ -7,16 +7,8 @@ template<typename FPTYPE, typename Device = psi::DEVICE_CPU>
 class OperatorPW : public Operator<std::complex<FPTYPE>, Device>
 {
     public:
-    virtual ~OperatorPW();
-    
-    //in PW code, different operators donate hPsi independently
-    //run this->act function for the first operator and run all act() for other nodes in chain table 
-    using hpsi_info = typename hamilt::Operator<std::complex<FPTYPE>, Device>::hpsi_info;
-    virtual hpsi_info hPsi(hpsi_info& input)const;
-    //main function which should be modified in Operator for PW base
-
-    std::string classname = "";
-    using syncmem_complex_op = psi::memory::synchronize_memory_op<std::complex<FPTYPE>, Device, Device>;
+        virtual ~OperatorPW();
+        std::string classname = "";
 };
 
 }//end namespace hamilt