Social organization fire risk assessment method based on multi-level statistical evaluation

The invention relates to a social organization fire risk assessment method based on multi-level statistical evaluation. The method comprises the steps of dividing grades of the social units; establishing a stepped summary structure, constructing a fire risk factor hierarchy, establishing a fire safety risk assessment model, adjusting parameters and/or weights in the fire safety risk assessment model according to the current actual situation, taking social units having occurred fire events as samples, assessing the feasibility of the model, and if the feasibility is feasible, putting into firerisk assessment. The fire safety risk assessment model is standardized and graded, assessment terms are refined, the accuracy of subjective assessment results is improved, the results are summarized based on the grading system, and the objective assessment results are more accurate; according to the method, a fire risk factor hierarchical structure is constructed, risk levels are divided, information sources are divided a