The invention discloses a day-ahead scheduling method of a wind power and electric vehicle joint system containing an interruptible load. The method includes the step of using a probability scene to characterize the uncertainty of wind power and constructing a two-stage day-ahead scheduling model of an electric vehicle and wind power system containing an interruptible load, wherein the first stageincludes conventional unit start/stop state optimization and electric vehicle cluster charge/discharge state optimization, and in the second stage, the real-time balance process of the power grid under different wind power scenes is simulated under the condition of maintaining the start/stop state of conventional units and the charge/discharge state of electric vehicles in the first stage, including the adjustment of the output of the conventional units, the adjustment of the charge/discharge power of the electric vehicle cluster and the interruption quantity of the interruptible load. According to the day-ahead scheduling method of a wind power and electric vehicle joint system considering an interruptible load, two kinds of user-side resources, namely, the electric vehicles and the interruptible load, are integrated into the power grid, which can effectively reduce the operation cost of the system.