本文设计了一种基于视觉导航的两轮自平衡小车系统，并实现了小车的直立行走、自主寻迹两大功能。系统用飞思卡尔十六位微处理器XS128作为核心控制单元，通过增加各种传感器并编写相应程序以完成平衡控制，速度控制，转向控制和自主寻迹四大任务。-This paper presents a visual navigation system is based on two-wheeled self-balancing the car, and realized the car to walk upright, self-tracking two functions. System with Freescale XS128 sixteen microprocessor as the core control unit, by adding a variety of sensors and to prepare appropriate procedures to complete the balance control, speed control, steering control and autonomous tracking of the four tasks.