Abstract: Abstract: According to the correlation of fire influence factors and the ambiguity of indicators, the fire risk assessment model based on entropy right-attribute mathematics is constructed. The fire evaluation system is established from the three aspects of fire prevention ability, fire extinguishing ability and safe evacuation ability, focusing on the use of attribute measurement theory to divide the single index level. Take a high-rise building in Nanchang as an example, the application of the built model is carried out to evaluate the fire risk level, the evaluation results are consistent with the reality, and the comprehensive evaluation results of the gray system, which shows that the model is feasible and the evaluation results are more objective and reasonable, which also provides a new idea for the fire risk assessment of high-rise buildings.

Key words: Key words: high-rise building fire, properties measure theory, entropy weight method, risk assessment