To make full use of the approximation capability of the BP neural network and the liability to fall into the global optimum solution of genetic algorithm, a genetic-neural network system was established by applying the genetic algorithm to optimize the BP neural network. 由于神经网络有很强的泛化映射能力,而遗传算法能收敛到全局最优解,因此将遗传算法与神经网络结合起来,建立了遗传神经网络。