In this paper, through the application of computer Internet technology in the power system, the power Internet technology effectively improves the operation and maintenance efficiency of the power Internet system and effectively reduces the risks and failures of the power Internet application. The theme of the article is that it should be aimed at the application of the power Internet, and on this basis, research the IT infrastructure in the power system, and improve it through certain methods to effectively reduce the risk and failure rate in the power grid system. It can effectively analyze the data collected by smart devices to determine whether the power Internet application is healthy. The system has the ability to perceive risks in advance, and the application of this system can effectively improve the power Internet: application operation and maintenance efficiency.