With the continuous and rapid development of power technology and computer technology, some power high-tech and electrical equipment are used in various fields of power and navigation and aerospace fields. As a kind of high-tech and advanced equipment, power technology and electrical equipment are widely used in the fields of electromechanics, aerospace, navigation, etc., and have now become necessary technologies and equipment for the development of various countries. The research on each link of power saving tells the status quo of marine electrical equipment and discusses the application and development prospects of power technology and electrical equipment.