With the rise of intelligent connected vehicle，auto parts companies have turned their attention to the intelligent vehicle industry.In recent years，the smart auto parts industry has developed rapidly.This paper analyzes the development situation of China's intelligent auto parts industry in the world auto parts industry from Europe，the United States and other countries to form a three-legged situation.It expounds the component of intelligent Vehicle parts chain from the environmental perception system，decision-marking planning system and control execution system，gave the well-known enterprises at home and abroad in the industry chain，and finally summarized the development path of key components.