The global environment is facing enormous challenges, coupled with the significant consumption of fossil fuels leading to an energy crisis. Electric vehicles （EVs） are highly popular in the market due to their green, efficient and low consumption characteristics. Firstly, starting from two aspects: never considering the output of new energy and considering the output of new energy, this paper combs and analyzes the research status of orderly charging of EVs. Secondly, the optimization strategies for orderly charging of EVs are summarized from four areas: optimization hierarchy, optimization algorithms, vehicle to grid （V2G） technology and charging station location selection. Then two domestic and foreign V2G demonstration projects are listed. Finally, a summary of the research on orderly charging of EVs is provided, and future applications are prospected.