Abstract: With the gradual improvement of the informatization level of smart grids,State Grid Corporation of China has put forward higher requirements for the stability,security and robustness of the newly launched information systems. Therefore,it is of great importance to improve the test level of information system performance. In this paper,the background and several common testing methods and procedures of information system testing are introduced in detail,to further improve the security of information systems and test efficiency through the information system test experiment,and ensure the efficiency of software development,security protection of information systems and the safe and stable operation of the power system.