Abstract: PyroSim was used to simulate a high- rise dormitory and the ASET was obtained through the fire field data such as smoke layer height, temperature and so on. MassMotion was used to simulate the evacuation and to obtain the RSET. The suggestion as improving an exit was put forward. The simulation data was compared with the evacuation time calculated by the empirical formula.The main factors which caused the difference in these results were analyzed. ASET was compared with RSET in order to determine the fire hazard of the building. Safety evacuation measures and related recommendations were proposed for the building.

Key words: MassMotion, PyroSim, high-rise building, evacuation