In this paper, wind power is modeled as a multi state generator, and the uncertainty of wind power prediction error is simulated by wind power outage rate.Based on the model of the interruptible load response based on the consumer psychology, this paper comprehensively evaluated the reliability index of the system which contains wind power and the uncertainty of the interruptible load.In this paper, a model for the coordination and optimization of the former days is set up.In order to meet the reliability of certain power supply, the optimization model can optimize the interruptible load and generator reserve capacity simultaneously.And in the 24 period of time, the positive effect of the interruptible load as a spare resource is studied under the condition of wind power uncertainty.Simulation results show that the demand of interruptible load for the system can be increased because of the need to stabilize the fluctuations of wind power after the introduction of wind power.As a kind of flexible control method, the interrupt load has positive significance in dealing with the uncertainty of wind power and reducing the operating cost of the system.