With the rapid development of the optical transmission technologies

the signal transmission rate has exceeded Gbit/s

so the analysis of high-speed channel simulation has become one of the key links in the success of the system development.This paper briefly introduces the basic principle and methods of Hspice simulation

discusses in detail the high speed serial channel simulation method based on Hspice software and presents several key links that have a bearing on high-speed channel performance through the comparison between the simulation eye diagrams and the methods for the improvement of channel performance.