As the developing of the information technology and the network business,service outsourcing is developing very quickly in the worldwide and in China in those years,most of the large-scale state-owned electric power design institute have put forward reforming to engineering company which put design as the main item.

The arm of the subject is to do some researches of the province electric power institute of design how about answer business risk and the risk’s variance which faced with the Chinese electric power enterprise s major works and the auxiliary works’separation.