The invention relates to a safety bus, belongs to a public traffic vehicle and mainly solves the problems that a conventional bus is provided with a narrow escape way and people in the bus cannot escape timely in the case of an emergency. The safety bus comprises a bus body and is characterized in that the rear end face of the bus body is provided with an opening; the position of the opening is provided with an escape door capable of being opened; the bottom end of the escape door is hinged on a vehicle body of the bus body; and the top end of the escape door is positioned at the opening side. In the invention, when the bus is under the emergency condition such as a fire and a traffic accident, the escape door can be opened; at the time, the rear part of the whole bus is open; the escape door is turned over downwards; and the outermost side of the escape door is in contact with the ground to form a ramp way connected with the ground, so that the whole escape way is totally opened. The safety bus is convenient for safe and rapid evacuation of people in the bus so as to ensure the life property safety of people.