Abstract: The micro grid with wind power and photovoltaic power generation as the representative of the renewable energy generation, because of its intermittent and volatility and unpredictability to the micro grid caused a greater negative impact, if a large number of access to ensure the safe and reliable operation of power quality and power grid. As a kind of electric energy storage unit, electric vehicle is used reasonably, which can play a certain buffer effect on the impact of the renewable energy generation on the micro grid. In this paper, the electric car charging and discharging the randomness and intermittency of wind power, photovoltaic power generation and the volatility and unpredictability, using scenario analysis method of cluster analysis, cut the fusion of period of electric vehicle charging and wind power and photovoltaic output data, a typical scene can reflect the historical characteristics of the data set; secondly and in consideration of unit parameters and user's demand constraints, give full play to the electric car as a storage buffer unit to reduce the output fluctuation of renewable energy, the influence to the power grid, improving the utilization of renewable energy, to ensure the safe and reliable economic and efficient micro grid operation; finally, the feasibility of the simulation numerical examples show that the proposed scheduling strategy.