This paper collets and studies all the standards released by IEC / TC 57 since it was established, and briefly introduces and analyzes them in terms of relevant information, corresponding standards in China, standards series, etc. At the same time, all standards currently being revised and formulated or the new standards going to be applied for are summarized and analysed. In terms of the time, use and operation, etc, this paper studies the IEC/TC 57 International standard system, makes some prospects on the development tendency of the domain, and discusses the hot points of this filed in the future. With the development of smart grid, the study will be a guidance for the construction of the smart grid standards.