分析了设计神经网络经济预警系统的一些关键问题，并提出了一种改进的遗传算法，在此基础上，介绍了一种基于这种改进遗传算法和ＢＰ算法的杂交算法神经网络经济预警系统 This paper analyzes some key problems in the design of economic early warning system of neural network and proposes an improved genetic algorithm. On the basis of this, a hybrid algorithm based on this improved genetic algorithm and BP algorithm is introduced. Neural Network Economic Warning System