Based on the development situation of the current lightning disaster risk regionalization, the paper starts with the prior risk assessment of regional lightning disaster risk and uses the disaster bearing body and hazard body model to establish evaluation indicators, which contain lightning risk, regional risk and disasters. By this model, the parameters with higher degree of intimacy are selected to study the prior hazard assessment of regional lightning disaster risk. Taking Fujian Province as an example to apply the model, the results indicate that this model can reflect well the degree of loss in lightning disaster areas. It is of positive significance to the researches on regional lightning disaster risk and the support of decision making for regional governments.