基于遗传算法的BP神经网络优化算法，以某拖拉机的齿轮箱为工程背景，介绍使用基于遗传算法的BP神经网络进行齿轮箱故障的诊断。-BP neural network optimization algorithm based on genetic algorithm, in the engineering background of a tractor gearbox, introduces using BP neural network based on genetic algorithm for gearbox fault diagnosis.