Using the sensor of laser obstacle avoidance and pixy visual sensor as the collector of road information, an intelligent vehicle system of photoelectric “searching” was designed, which could start from the designated position and quickly search for beacon lights that were randomly lighted in the site. The system used the pixy visual sensor to collect the light source, and got the position signal of the smart vehicle. The laser obstacle avoidance sensor was adopted to collect the position signal of the obstacle. Through PID control algorithm, path identification algorithm and speed control algorithm, the road was judged as straight line or curve. The vehicle could avoid obstacles and realize automatic driving. The system has been proved to be small size, low cost, high accuracy, high reliability and fast reaction.