Abstract: The lack of building information and drawings is the primary problem facing the fire prevention and control of village buildings. Aiming at the problems of heavy workload, high cost and inaccurate data obtained from traditional on-site surveying and mapping, based on the detailed modeling data of typical single buildings obtained from on-site investigation, this paper uses UAV tilt photography technology to obtain the geographic information data of village buildings, and establishes the analysis model of fire spread of village buildings. The simplified analysis method is further used to determine the fire spread and fire spread loss of different buildings in the building complex. Finally, this paper takes a village in Yunnan Province as the research object, establishes the fire spread model of the village and analyzes the risk of fire spread. The results show that this method can effectively obtain the modeling data of the village building fire spread model, and provide data support for the subsequent fire spread risk analysis.

Key words: UAV, village buildings, fire spread, network model, DLG, fire scenario