With the increasing proportion and key degree of software in modern high reliability equipment, the traditional software safety testing methods cannot meet the requirement of current testing. This paper mainly introduces a new method of safety testing and analysis-the application of SFMEA technology in software safety testing, to make up for the deficiency of safety testing requirement analysis and test case design. The article first analyzes and introduces the contents, methods, and shortcomings of the conventional safety test. At the same time, it analyzes the necessity of introducing a new safety test method, and then introduces the definition, method, and process of SFMEA safety analysis technology. Finally, the software based on SFMEA safety analysis technology is described in detail. The safety testing method and workflow of the piece are introduced, and the merits and demerits of safety testing based on SFMEA safety analysis technology and the focus of attention are summarized.