diff --git a/mindspore/ccsrc/debug/debugger/debugger.cc b/mindspore/ccsrc/debug/debugger/debugger.cc
index 31315e603bb..9b509f4e729 100644
--- a/mindspore/ccsrc/debug/debugger/debugger.cc
+++ b/mindspore/ccsrc/debug/debugger/debugger.cc
@@ -147,22 +147,8 @@ void Debugger::EnableDebugger() {
   }
 
   if (debugger_enabled_) {
-    // configure grpc host
-    std::string env_host_str = common::GetEnv("MS_DEBUGGER_HOST");
-    std::string host;
-    if (!env_host_str.empty()) {
-      if (CheckIp(env_host_str)) {
-        MS_LOG(INFO) << "Getenv MS_DEBUGGER_HOST: " << env_host_str;
-        host = env_host_str;
-      } else {
-        debugger_enabled_ = false;
-        MS_EXCEPTION(ValueError) << "Environment variable MS_DEBUGGER_HOST isn't a valid IP address. "
-                                    "Please set environment variable MS_DEBUGGER_HOST=x.x.x.x to a valid IP";
-      }
-    } else {
-      MS_LOG(INFO) << "Environment variable MS_DEBUGGER_HOST doesn't exist. Using default debugger host: localhost";
-      host = "localhost";
-    }
+    std::string host = "localhost";
+
     // configure grpc port
     std::string env_port_str = common::GetEnv("MS_DEBUGGER_PORT");
     std::string port;
@@ -1134,17 +1120,6 @@ bool Debugger::CheckPort(const std::string &port) const {
   return true;
 }
 
-bool Debugger::CheckIp(const std::string &host) const {
-  std::regex reg_ip(
-    "(25[0-4]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[1-9])"
-    "[.](25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])"
-    "[.](25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])"
-    "[.](25[0-4]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[1-9])");
-  std::smatch smat;
-  std::string host_str = host;
-  return std::regex_match(host_str, smat, reg_ip);
-}
-
 uint32_t Debugger::GetFirstRunGraphId() const { return rungraph_id_list_.front(); }
 
 void Debugger::LoadSingleAnfnode(const AnfNodePtr &anf_node, const size_t output_index) {
diff --git a/mindspore/ccsrc/debug/debugger/debugger.h b/mindspore/ccsrc/debug/debugger/debugger.h
index de1c8668b9c..49e103ea082 100644
--- a/mindspore/ccsrc/debug/debugger/debugger.h
+++ b/mindspore/ccsrc/debug/debugger/debugger.h
@@ -235,9 +235,6 @@ class Debugger : public std::enable_shared_from_this<Debugger> {
   // Check if the port is valid
   bool CheckPort(const std::string &port) const;
 
-  // Check if the IP is valid
-  bool CheckIp(const std::string &host) const;
-
   void LoadSingleAnfnode(const AnfNodePtr &anf_node, const size_t output_index);
 
   // class members