diff --git a/app/scanner/device_menu.h b/app/scanner/device_menu.h
index 0c34ea54..316f2bcf 100644
--- a/app/scanner/device_menu.h
+++ b/app/scanner/device_menu.h
@@ -8,6 +8,7 @@
 #include "../../../sdk/include/huagao/hgscanner_error.h"
 
 #include "cfg/gb_json.h"
+#include "lang/app_language.h"
 
 typedef struct _scanner
 {
@@ -232,7 +233,8 @@ public:
                     char *buf = new char[opt->size + 4];
                     memset(buf, 0, opt->size + 4);
                     sane_io_control(h, IO_CTRL_CODE_GET_DEFAULT_VALUE, buf, &n);
-                    schm->set_default_value(i, opt->name, buf, strlen(buf));
+                    std::string langCN(to_default_language(buf, nullptr));
+                    schm->set_default_value(i, opt->name, &langCN[0], langCN.length());
                     delete[] buf;
                 }
             }
@@ -262,7 +264,8 @@ public:
                             char *buf = new char[opt->size + 4];
                             memset(buf, 0, opt->size + 4);
                             strcpy(buf, val.c_str());
-                            sane_control_option(h, id, SANE_ACTION_SET_VALUE, buf, &none);
+                            std::string langCN(from_default_language(buf, nullptr));
+                            sane_control_option(h, id, SANE_ACTION_SET_VALUE, &langCN[0], &none);
                             delete[] buf;
                         }
                         else {
diff --git a/app/scanner/hg_settingdialog.cpp b/app/scanner/hg_settingdialog.cpp
index 6d8be19c..f1092634 100644
--- a/app/scanner/hg_settingdialog.cpp
+++ b/app/scanner/hg_settingdialog.cpp
@@ -150,7 +150,8 @@ void hg_settingdialog::updateOpt()
                     unsigned int n = i;
                     int err = sane_io_control(m_handle, IO_CTRL_CODE_GET_DEFAULT_VALUE, init, &n);
                     (void)err;
-                    cur_scheme_->set_default_value(i, opt->name, init, strlen(init));
+                    std::string langCN(to_default_language(init, nullptr));
+                    cur_scheme_->set_default_value(i, opt->name, &langCN[0], langCN.length());
                 }
                 free(init);
             }
@@ -158,7 +159,6 @@ void hg_settingdialog::updateOpt()
             {
                 m_list_defaultOptions.append(QPair<const void*, QVariant>(opt, QVariant(0)));
             }
-
         }
     }
 }