In recent years,sensors have been widely used,providing reliable support for the innovation and development of driverless vehicle technology.The application of sensors in driverless cars can effectively replace the driver's perception of the environment,obstacle avoidance,and wireless communication.Today,sensors are becoming more and more connected to driverless cars,and automakers have begun to use a wide variety of sensors in driverless cars.On the basis of the existing sensor devices and technologies,the goal of developing in the direction of intelligence,integration and miniaturization has been realized.However,there are still some technical challenges in applying sensors to driverless cars.This paper focuses on the application of sensors in driverless cars,aiming to improve the performance of driverless cars and improve the level of automotive research and development.