The numerical analysis of solid state lasers using software has important theoretical guiding significance for the design and optimization of the laser.According to the different sources of software,the design software of solid state lasers can be divided into two kinds:personal development software and special commercial software.The special commercial software has been widely used in practice because of its high integration and computational efficiency.The ASLD as a typical commercial design software was used to design a typical Q-switched laser,and the output effect of the laser was tested.By analyzing the error between theoretical simulation and experimental results,the following conclusions were drawn:the use of commercial design software for solid-state laser can significantly improve design efficiency,and the physical model of the software must be adequately understood.When the physical model of the software can meet the actual needs,the software can work properly through inputting reasonable initial parameters.When the physical model of the software is not accurate,the second development of the software must be carried out.