In the past two decades, with the development of computers and various statistical software, statistics, as a primary subject, has been widely used in finance, insurance, biology, medicine, economy, sports, operations management and engineering technology. Many fields have been extended by the use of statistical tools and ideas. Although there are still some problems or errors in applying statistical knowledge, statistics are of great help in many ways. Without it, many issues would not be solved. In the complex financial modelling environment, the use of statistics can often produce a more compelling force, so in the process of continuous development and improvement of statistics itself, it is used more and more frequently in the field of financial modelling.