The invention relates to a power distribution network reconstruction measure and voltage qualification rate index correlation mining method and device. The method comprises the following steps of simulating and quantizing various factor layer indexes; obtaining sample data of an association relationship between the configurable resource reconstruction measure of an active power distribution network and the corresponding operation performance; using a non-linear mapping capability of a BP neural network to construct a direct mapping between a power distribution network transformation measure and a voltage qualification rate; taking the sample data as a training sample, training the BP neural network to obtain power distribution network voltage qualification rate evaluation models under different transformation measures based on the BP neural network, and finally, carrying out parameter optimization on the BP neural network by adopting a genetic algorithm to obtain a more accurate powerdistribution network voltage qualification rate evaluation model. The method and the device are beneficial to discovering potential relevance between power distribution network transformation measuresand the voltage qualification rate index, and the calculation efficiency is improved.