With the constantly emerging of the highrise building, the highrise building fireextinguishment has become a difficult problem in the world. As a safe passage of highrise buildings, the fire corridorplays a very important role for highrise building fire safety. Based on the fire corridor,a highrise building fireextinguishing system is put forward in this paper. The system installed on the fire corridor consists of fire monitor updown device, installing device, homing intelligent fire monitor and control system. The overall design of this system is introduced in this paper, and the fire monitor updown device is analyzed in details, the intelligent fire monitor is selected. It can make sure that the fire can be controlled effectively in the early stage of fire before the arrival of fire trucks by using this system, especially for the building facade fire.