diff --git a/src/slic3r/GUI/DeviceManager.cpp b/src/slic3r/GUI/DeviceManager.cpp
index 55a1683059..248cb1d198 100644
--- a/src/slic3r/GUI/DeviceManager.cpp
+++ b/src/slic3r/GUI/DeviceManager.cpp
@@ -490,6 +490,18 @@ void MachineObject::_parse_ams_status(int ams_status)
     BOOST_LOG_TRIVIAL(trace) << "ams_debug: main = " << ams_status_main_int << ", sub = " << ams_status_sub;
 }
 
+bool MachineObject::can_unload_filament()
+{
+    bool result = false;
+    if (!has_ams())
+        return true;
+
+    if (ams_status_main == AMS_STATUS_MAIN_IDLE && hw_switch_state == 1 && m_tray_now == "255") {
+        return true;
+    }
+    return result;
+}
+
 bool MachineObject::is_U0_firmware()
 {
     auto ota_ver_it = module_vers.find("ota");
diff --git a/src/slic3r/GUI/DeviceManager.hpp b/src/slic3r/GUI/DeviceManager.hpp
index ad54d22190..1f1c91eb7e 100644
--- a/src/slic3r/GUI/DeviceManager.hpp
+++ b/src/slic3r/GUI/DeviceManager.hpp
@@ -439,6 +439,7 @@ public:
     // parse amsStatusMain and ams_status_sub
     void _parse_ams_status(int ams_status);
     bool has_ams() { return ams_exist_bits != 0; }
+    bool can_unload_filament();
     bool is_U0_firmware();
     bool is_support_ams_mapping();
     bool is_only_support_cloud_print();
diff --git a/src/slic3r/GUI/StatusPanel.cpp b/src/slic3r/GUI/StatusPanel.cpp
index 68e9b22703..bbc972ef26 100644
--- a/src/slic3r/GUI/StatusPanel.cpp
+++ b/src/slic3r/GUI/StatusPanel.cpp
@@ -1633,17 +1633,16 @@ void StatusPanel::update_misc_ctrl(MachineObject *obj)
 {
     if (!obj) return;
 
-    if (obj->has_ams()) {
+    if (obj->can_unload_filament()) {
+        if (!m_button_unload->IsShown()) {
+            m_button_unload->Show();
+            m_button_unload->GetParent()->Layout();
+        }
+    } else {
         if (m_button_unload->IsShown()) {
             m_button_unload->Hide();
             m_button_unload->GetParent()->Layout();
         }
-       
-    } else {
-        if (!m_button_unload->IsShown()) {
-            m_button_unload->Show();
-            m_button_unload->GetParent()->Layout();
-        } 
     }
 
     // update extruder icon