diff --git a/misc/config_tools/launch_config/com.py b/misc/config_tools/launch_config/com.py
index a678da07b..efdbd0145 100644
--- a/misc/config_tools/launch_config/com.py
+++ b/misc/config_tools/launch_config/com.py
@@ -31,7 +31,7 @@ def tap_user_vm_net(names, virt_io, vmid, config):
     user_vm_type = names['user_vm_types'][vmid]
     board_name = names['board_name']
 
-    vm_name = common.undline_name(user_vm_type).lower()
+    vm_name = names['user_vm_names'][vmid]
 
     if launch_cfg_lib.is_linux_like(user_vm_type) or user_vm_type in ("ANDROID", "ALIOS"):
         i = 0
@@ -50,7 +50,7 @@ def tap_user_vm_net(names, virt_io, vmid, config):
 
     print("#vm-name used to generate user-vm-mac address", file=config)
     print("mac=$(cat /sys/class/net/e*/address)", file=config)
-    print("vm_name=post_vm_id$1", file=config)
+    print("vm_name=\"{}\"".format(vm_name), file=config)
     print("mac_seed=${mac:0:17}-${vm_name}", file=config)
     print("", file=config)
 
diff --git a/misc/config_tools/launch_config/launch_cfg_gen.py b/misc/config_tools/launch_config/launch_cfg_gen.py
index 2fc9c64cc..f6afa62bd 100644
--- a/misc/config_tools/launch_config/launch_cfg_gen.py
+++ b/misc/config_tools/launch_config/launch_cfg_gen.py
@@ -4,6 +4,7 @@
 #
 
 import os
+import re
 import sys
 sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'library'))
 from launch_item import AvailablePthru, PthruSelected, VirtioDeviceSelect, AcrnDmArgs, SriovDeviceInput
@@ -122,6 +123,10 @@ def get_names():
     user_vm_types = launch_cfg_lib.get_user_vm_type()
     names['user_vm_types'] = user_vm_types
 
+    # get user_vm name
+    user_vm_names = launch_cfg_lib.get_user_vm_names()
+    names['user_vm_names'] = user_vm_names
+
     # get board name
     (err_dic, board_name) = common.get_board_name()
     if err_dic:
@@ -195,6 +200,17 @@ def main(args):
         if post_num > post_vm_count:
             err_dic['xm config err:'] = "launch xml user vmid config is bigger than scenario post vm count"
 
+    # validate vm_names
+    scenario_names = common.get_leaf_tag_map(scenario_info_file, "name").values()
+    for user_vm_id, vm_name in launch_cfg_lib.get_user_vm_names().items():
+        if not re.match(r"^\S{1,15}$", vm_name):
+            err_name = 'user_vm id="{}" name error:'.format(user_vm_id)
+            err_dic[err_name] = 'vm_name only allowed 1-15 characters with letters, numbers & symbols ' \
+                                '(not include space)'
+        if vm_name not in scenario_names:
+            err_name = 'user_vm id="{}" name not found error:'.format(user_vm_id)
+            err_dic[err_name] = 'user_vm id="{}" vm_name not found in it scenario file:'.format(user_vm_id)
+
     if err_dic:
         return err_dic
 
diff --git a/misc/config_tools/library/launch_cfg_lib.py b/misc/config_tools/library/launch_cfg_lib.py
index dda2f1cdf..ecc80de0f 100644
--- a/misc/config_tools/library/launch_cfg_lib.py
+++ b/misc/config_tools/library/launch_cfg_lib.py
@@ -256,6 +256,11 @@ def get_user_vm_type():
     return user_vm_types
 
 
+def get_user_vm_names():
+    user_vm_names = common.get_leaf_tag_map(common.LAUNCH_INFO_FILE, "vm_name")
+    return user_vm_names
+
+
 def is_bdf_format(bdf_str):
     bdf_len = 7
     status = True