As a positive response to the national energy-saving emission reduction policies to promote, line loss management company, the Henan province electric power company (hereinafter referred to as "the company") launched the Henan power grid construction project management system. This project has realized the on line calculation of theoretical line loss, line loss "four" management, decision support, to reduce the loss of line loss analysis of eight functions, and continue to demonstrate in the running process, formed the application mode of Henan power network line loss management system. This paper mainly Introduction Company in recent years the framework, work and the status line loss management system function and practical application etc..