With the development of technology and the improvement of consumer demand for driving experience, car AR glasses design project came into being. This project aims to develop a car AR glasses that integrates inductive electrochromic function and auxiliary HUD function to provide users with a more intelligent, safe and comfortable driving experience. Through advanced electrochromic technology, rapid color change of eyeglass lenses is realized. In the case of direct sunlight or strong reflection, the lens can automatically adjust the color depth, effectively reduce visual fatigue, improve driving safety. At the same time, AR technology is used to present important information such as warning and guidance in the upper left corner of the AR glasses' field of view based on the edge interaction theory, which is always within the driver's line of sight, avoiding the driver's frequent viewing of the dashboard and improving driving safety.