Starting with an interpretation of the concept of v2g, this paper first analyzed the development background of v2g from such two aspects as the global market and energy, based on which the concept of "optimal scheduling" was introduced.Then, the key factors required by optimal scheduling were summarized, including scheduling assessment standards and real-time optimization management, and reviewed studies of optimal scheduling at home and abroad to explore its feasibility.Finally, this paper provided insights on network security, enterprise management and application agreement, three aspects not involved in the study, observed the market conditions based on statistical charts and proposed a series of suggestions based on the real situation.