Abstract: In response to the significant impact of the intermittency and randomness of wind power output on power economic dispatch, this paper focuses on the research of power economic dispatch under the integration of multiple power sources including wind power, photovoltaic, and thermal power, and constructs an economic dispatch model for joint generation of wind power,photovoltaic, and thermal power. The model adopts a two-stage optimization framework: the first stage aims to minimize the total cost of joint generation of wind power, photovoltaic, and thermal power; the second stage, with the output results of the first stage as boundary conditions, aims to minimize the procurement cost of wind power from the grid. The model is solved using a vertical and horizontal crossover algorithm, and the proposed model and solving method are verified through a Matlab example. The results of the example show that the proposed dispatch model can simultaneously minimize the total generation cost and the procurement cost of wind power, effectively reducing the system operating cost; the vertical and horizontal crossover algorithm can efficiently solve this dispatch model.