Abstract: Based on the Fire Dynamics Simulator (FDS), this paper analyzes the applicability of fire prevention measures of ancient buildings, including wall plastering, patio, tile roof and gable. The results are as follows: The indoor wall plastering has good fire prevention function with a fire delay of 60 seconds, reducing the wood loss of ancient buildings by 18%; The increase in patio area can delay the spread of fire in horizontal direction and reduce the area of flashover; When the area of the patio increases, the heating rate of the area far away from the fire source decreases over time, and the heating rate of the area near the fire source decreases first and then increases; Tile roof can effectively resist flying fire. It is suggested that the roof in ancient architecture should be completely covered with tile or other difficult combustible materials; Due to the fire resistance test, it is suggested that the height of the gables on both sides of the patio should be higher than the eaves 0.5 meters at least.

Key words: ancient architecture, fire, traditional fire prevention measures, simulation analysis