Owing to the characteristics of nonlinear and time varying of different parameters in processing of storage battery charging, in order to realize rapid charge for lithium battery with high efficiency, the idea of charge system for lithium battery based on TMS320F2407 is proposed in this paper. Fuzzy control of recursive neural network based on immune genetic algorithm is adopted, to solve some problems occurred in the rapid charging system. Controlling circuits and corresponding system software are designed. The ability of real-time processing for rapid charge and peripheral function of controller are put into one set, and it is proved that the proposed method is feasible through practical experiment.