A rolling dispatch strategy of the wind farm and gas-steam combined cycle power plant (CCPP) coordinated system based on model predictive control (MPC) method is proposed. Considering the constraints of CCPP, this strategy aims to optimize the power generation in the coordinated system. Firstly, the structure and working principle of CCPP and the concept of wind-gas coordinated equivalent power plant (WGPP) are introduced. Secondly, considering the working state, start-up and shut-down process of CCPP, a mathematical model of CCPP is established. Based on this model and considering the wind power curtailment, a MPC-based rolling dispatch strategy of wind-gas coordinated system is proposed in order to maximize the benefit of WGPP. Finally, the simulation results demonstrate that the new strategy can not only make WGPP track the dispatch targets, but also optimize the power generation in WGPP.