Abstract: In view of frequent wind-curtailed phenomenon in the power generation process, this study constructs a power generation scheduling model which considers the curtailment cost of wind power. In the objective function, When the wind power is curtailed, the total power generation costs will be increased as the punishment mechanism of wind power curtailment. At the same time, the utilization ratio limit of wind power will also be taken into consideration for the constraint conditions. Through the Lagrange function, we can deduce the calculation formula of the curtailment cost of wind power. The numerical example shows that, compared with the traditional scheduling strategy, this new strategy which considers the curtailment cost of wind power, would effectively increase the utilization rate of wind power and reduce the output of the thermal power generation.