Abstract: With the scale expansion of the main network substation equipment and the acceleration of the modern equipment management system construction, the operation and maintenance requirements of substation equipment are getting higher and higher.Firstly, it researches the development status and technology application of substation inspection service.It analysizes the significance of building substation intelligent inspection platform.Then, through the investigation of the actual needs of the current production line, it proposes the intelligent inspection platform system scheme.It mainly introduces the system architecture, function, inter-faces, hardware and software configuration of the intelligent inspection platform.Through the pilot project of State Grid Zhejiang Electric Power, it introduces the application practice of the intelligent inspection platform.Finally, it discusses the future development direction of intelligent inspection platform, which provides some reference for substation intelligent operation and maintenance.