With the increasing application of computer technology, there are hundreds of statistical software with characteristics in the field of statistics, among which SAS is the most influential software in the world. SAS can be widely applied into various fields like economic management, commercial finance, medicine, education, psychology, biology, geography and so on. It is of great significance in application. It is reported that about eighty percent of the global 500 companies use SAS, therefore SAS has been reputed as the standard software for statistics analysis.