diff --git a/misc/acrn-config/launch_config/launch_item.py b/misc/acrn-config/launch_config/launch_item.py
index 2c7a25f03..c73cc711a 100644
--- a/misc/acrn-config/launch_config/launch_item.py
+++ b/misc/acrn-config/launch_config/launch_item.py
@@ -141,6 +141,9 @@ class PthruSelected():
         launch_cfg_lib.pt_devs_check(self.bdf["wifi"], self.vpid["wifi"], "wifi")
         launch_cfg_lib.pt_devs_check(self.bdf["bluetooth"], self.vpid["bluetooth"], "bluetooth")
 
+        # check connections between several pass-through devices
+        launch_cfg_lib.pt_devs_check_audio(self.bdf['audio'], self.bdf['audio_codec'])
+
 
 class VirtioDeviceSelect():
 
diff --git a/misc/acrn-config/launch_config/pt.py b/misc/acrn-config/launch_config/pt.py
index 44a8c066c..d07e78bea 100644
--- a/misc/acrn-config/launch_config/pt.py
+++ b/misc/acrn-config/launch_config/pt.py
@@ -192,10 +192,6 @@ def audio_pt(uos_type, sel, vmid, config):
         print("else", file=config)
         print('    boot_audio_option="-s {},virtio-audio"'.format(slot_audio), file=config)
         print("fi", file=config)
-    elif bdf_codec:
-        # only selected audio codec, then set error message
-        key = "audio/audio codec error:"
-        launch_cfg_lib.ERR_LIST[key] = "Audio codec device should be pass through together with Audio devcie"
 
 
 def media_pt(uos_type, sel, vmid, config):
diff --git a/misc/acrn-config/library/launch_cfg_lib.py b/misc/acrn-config/library/launch_cfg_lib.py
index 08fb8e2ce..88c545ef6 100644
--- a/misc/acrn-config/library/launch_cfg_lib.py
+++ b/misc/acrn-config/library/launch_cfg_lib.py
@@ -601,3 +601,19 @@ def get_vuart1_from_scenario(vmid):
     """Get the vmid's  vuart1 base"""
     vuart1 = common.get_vuart_info_id(SCENARIO_INFO_FILE, 1)
     return vuart1[vmid]['base']
+
+
+def pt_devs_check_audio(audio_map, audio_codec_map):
+    """
+    Check the connections about audio/audio_codec pass-through devices
+    If audio_codec is selected as pass-through device, the audio device
+    must to be chosen as pass-through device either.
+    :param audio_map: the dictionary contains vmid and bdf of audio device
+    :param audio_codec_map: the dictionary contains vmid and bdf of audio_codec device
+    """
+    for vmid in list(audio_map.keys()):
+        bdf_audio = audio_map[vmid]
+        bdf_codec = audio_codec_map[vmid]
+        if not bdf_audio and bdf_codec:
+            key = "uos:id={},passthrough_devices,{}".format(vmid, 'audio_codec')
+            ERR_LIST[key] = "Audio codec device should be pass through together with Audio devcie!"