The design of automatic tri-axial add sample system is mainly used in industrial control. We design this system for solving existence in traditional control system problems. In our system we use based on S3C2440 embedded system. Through SDK which derived from the custom Windows CE Embedded System, we using integrated development environment vs2005 to develop applications program. The advantage of this application program is mainly embodied in the use of LCD touch screen to achieve human-computer interface. Through this interface can control the entire system work so that many people can be freed from the tedious labor, greatly improving work efficiency. By test this system in a practical way show that our design system has a high degree of automation, cost-effective and portable, real-time and other characteristics.