diff --git a/mycobot_description/urdf/jetsonNano/nano.launch b/mycobot_description/urdf/jetsonNano/nano.launch
deleted file mode 100644
index 61e5c32..0000000
--- a/mycobot_description/urdf/jetsonNano/nano.launch
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0"?>
-<launch>
-	<arg name="firefighter" />
-	<arg name="gui" default="False" />
-	<param name="robot_description" textfile="$(arg model)" />
-	<param name="use_gui" value="$(arg gui)"/>
-	<node name="joint_state_publisher" pkg="joint_state_publisher" type="joint_state_publisher" ></node>
-	<node name="robot_state_publisher" pkg="robot_state_publisher" type="state_publisher" />
-	<node name="rviz" pkg="rviz" type="rviz" args="-d $(find urdf_tutorial)/urdf.rviz" />
-</launch>
diff --git a/mycobot_description/urdf/mycobot_pi/pi.launch b/mycobot_description/urdf/mycobot_pi/pi.launch
deleted file mode 100644
index 33ae0b6..0000000
--- a/mycobot_description/urdf/mycobot_pi/pi.launch
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0"?>
-<launch>
-
-
-	<!-- urdf文件，模型文件的路径-->
-	<arg name="firefighter" default="$(find mycobot_description)/urdf/mycobot_pi/mycobot_urdf.urdf"/>
-	
-	
-	
-	<arg name="gui" default="False" />
-	<param name="robot_description" textfile="$(arg model)" />
-	<param name="use_gui" value="$(arg gui)"/>
-	<node name="joint_state_publisher" pkg="joint_state_publisher" type="joint_state_publisher" ></node>
-	<node name="robot_state_publisher" pkg="robot_state_publisher" type="state_publisher" />
-	
-	
-	
-	
-	<!-- Show in Rviz-->
-	<node name="rviz" pkg="rviz" type="rviz" args="-d $(find urdf_tutorial)/urdf.rviz" />
-</launch>
diff --git a/mycobot_description/urdf/seeed/seeed.launch b/mycobot_description/urdf/seeed/seeed.launch
deleted file mode 100644
index 61e5c32..0000000
--- a/mycobot_description/urdf/seeed/seeed.launch
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0"?>
-<launch>
-	<arg name="firefighter" />
-	<arg name="gui" default="False" />
-	<param name="robot_description" textfile="$(arg model)" />
-	<param name="use_gui" value="$(arg gui)"/>
-	<node name="joint_state_publisher" pkg="joint_state_publisher" type="joint_state_publisher" ></node>
-	<node name="robot_state_publisher" pkg="robot_state_publisher" type="state_publisher" />
-	<node name="rviz" pkg="rviz" type="rviz" args="-d $(find urdf_tutorial)/urdf.rviz" />
-</launch>