Abstract: Due to the requirements of the tower command dimroom, the roof adopts light steel structure. The tower cannot set elevated fire tank restricted by bearing capacity of structure and building height. Analyzing fire scene, fire smoke flow and personnel safe evacuation, strengthening measures were proposed, such as fire water supply system of stable-high pressure, two way of water supply,dual power supply, using fast response sprinkler optimizing the selection of pipes, firefighting equipment with internet
of things, and deploying air ventilator. Evacuation time was long in the event that the automatic fire extinguishing system and smoke exhaust system in the fire area were effective, achieving the design safety goal which can prevent fire from spreading in large scale andguarantee the personnel safety in the building.

Key words: airport tower, elevated fire tank, safe evacuation, fire water supply system of stable- high pressure, automatic fire distinguish system