diff --git a/src/slic3r/GUI/HMS.cpp b/src/slic3r/GUI/HMS.cpp
index 816a95b9b..66231c566 100644
--- a/src/slic3r/GUI/HMS.cpp
+++ b/src/slic3r/GUI/HMS.cpp
@@ -242,6 +242,7 @@ wxString HMSQuery::_query_hms_msg(std::string long_error_code, std::string lang_
         return wxEmptyString;
     }
 
+    std::unique_lock unique_lock(m_hms_mutex);
     if (!m_hms_info_json.is_object())
     {
         BOOST_LOG_TRIVIAL(error) << "the hms info is not a valid json object";
@@ -299,6 +300,8 @@ wxString HMSQuery::_query_hms_msg(std::string long_error_code, std::string lang_
 
 bool HMSQuery::_query_error_msg(wxString &error_msg, std::string error_code, std::string lang_code)
 {
+    std::unique_lock unique_lock(m_hms_mutex);
+
     if (m_hms_info_json.contains("device_error")) {
         if (m_hms_info_json["device_error"].contains(lang_code)) {
             for (auto item = m_hms_info_json["device_error"][lang_code].begin(); item != m_hms_info_json["device_error"][lang_code].end(); item++) {
@@ -338,6 +341,8 @@ bool HMSQuery::_query_error_msg(wxString &error_msg, std::string error_code, std
 
 wxString HMSQuery::_query_error_url_action(std::string long_error_code, std::string dev_id, std::vector<int>& button_action)
 {
+    std::unique_lock unique_lock(m_hms_mutex);
+
     if (m_hms_action_json.contains("data")) {
         for (auto item = m_hms_action_json["data"].begin(); item != m_hms_action_json["data"].end(); item++) {
             if (item->contains("ecode") && boost::to_upper_copy((*item)["ecode"].get<std::string>()) == long_error_code) {
@@ -394,6 +399,8 @@ int HMSQuery::check_hms_info(std::string dev_type)
     dev_sn.push_back("094");
 
     boost::thread check_thread = boost::thread([this, dev_type, dev_sn] {
+
+        std::unique_lock unique_lock(m_hms_mutex);
         for (auto sn : dev_sn) {
             download_hms_related(QUERY_HMS_INFO, &m_hms_info_json, sn);
             download_hms_related(QUERY_HMS_ACTION, &m_hms_action_json, sn);
diff --git a/src/slic3r/GUI/HMS.hpp b/src/slic3r/GUI/HMS.hpp
index ad7025603..152e33ed7 100644
--- a/src/slic3r/GUI/HMS.hpp
+++ b/src/slic3r/GUI/HMS.hpp
@@ -11,6 +11,7 @@
 #include "slic3r/Utils/Http.hpp"
 #include "libslic3r/Thread.hpp"
 #include "nlohmann/json.hpp"
+#include <mutex>
 
 namespace Slic3r {
 namespace GUI {
@@ -20,9 +21,12 @@ namespace GUI {
 #define QUERY_HMS_ACTION	"query_hms_action"
 
 class HMSQuery {
+
 protected:
 	json m_hms_info_json;
 	json m_hms_action_json;
+    mutable std::mutex m_hms_mutex;
+
     int download_hms_related(std::string hms_type, json *receive_json, std::string dev_type);
     int load_from_local(std::string &version_info, std::string hms_type, json *load_json, std::string dev_type);
 	int save_to_local(std::string lang, std::string hms_type, std::string dev_type, json save_json);
@@ -30,6 +34,7 @@ protected:
 	wxString _query_hms_msg(std::string long_error_code, std::string lang_code = std::string("en")) const;
     bool _query_error_msg(wxString &error_msg, std::string long_error_code, std::string lang_code = std::string("en"));
     wxString _query_error_url_action(std::string long_error_code, std::string dev_id, std::vector<int>& button_action);
+
 public:
 	HMSQuery() {}
     int  check_hms_info(std::string dev_type = "00M");