In the design of electricity default services, the mature power market operations in Europe and the U.S. have important experience in the construction of domestic guaranteed services.The practical experience of European and American electricity default services is taken as the research point. Under the definition and basic concept of systemic analysis electricity default,implementation and analysis of various implementation forms of the guarantee service from the perspective of the determination of the electricity default service provider of the European and American power market guarantee services and the pricing method is detailed. At the end, combining with Chinese actual national conditions, suggestions for the construction of Chinese electricity default services is put forward.