本文讨论了激光切割加工工艺特征及其相关工艺参数对加工质量的影响，介绍了以ＢＰ神经网络为基础的专家系统的特点，在此基础上建立了激光切割加工工艺参数模型，它具有自学习、易扩展、易使用等优点，用户可以通过用优化后的工艺参数样本对此模型进行训练可以自动生成激光切割加工工艺数据选择专家系统。 This paper discusses the laser cutting process characteristics and related process parameters on the quality of the impact of the introduction of the BP neural network based on the characteristics of the expert system, on this basis established a laser cutting process parameters model, which has a self-learning , Easy to expand, easy to use and so on, users can optimize the process parameters through the training of this model can automatically generate laser cutting process data selection expert system.