Abstract: With the vehicle speed increased, the density of road traffic increased, the safety car performance requirements have become more sophisticated. Vehicle anti-lock braking system （ABS） came into being, it is based on the traditional basis of the braking system, electronic control technology, the wheel brake to prevent the wheel holds dead electromechanical integration of a system. Many of them applied mechanics, electricity, magnetism, such as hydraulic theory of physics, through the discussion of ABS understanding of the physics of modern technology application.

Key words: anti-lock braking, physics, application