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Fire risk is always very high on large public entertainment areas which contain a lot of people and facilities, and not only the big amount of the death and the wounded, but also the property lose would threaten the social safety. So it is important to analyze the fire risk assessment (FRA) on large public entertainment areas, the aim is to service the precaution methods and reduce fire risk. A kind of fuzzy multi-levels assessment index system of FRA on large public entertainment area is built in this article, and the fuzzy evaluation theory is utilized to evaluate different weights of the indices, the weights' data would contribute to the whole evaluation system. One kind of fuzzy comprehensive evaluation model and the method for determining evaluation levels are presented and practiced in real example, also the results of the example express the practicability of the evaluation model. Through theory analysis and real application, this fuzzy evaluation theory could be used in fire risk assessment on large public entertainment areas.