In recent years, bus fires occur frequently and accidents are often accompanied by serious casualties. Aiming at this situation, in order to improve the shortage of the traditional way of escape for bus and reduce casualties, in this paper, an intelligent escape system for bus through broken Windows was designed. The system adopts modular design, and a large number of experiments and optimization are carried out in dangerous goods early warning, fire detection and broken window effect test. The results show that the system can effectively break windows and quickly open up multiple escape routes in the case of bus fire accident.