Abstract: Parks usually involve the production,conversion and use of various energy flows,such as cold,heat,and electricity.By utilizing the combined cooling heating and power（CCHP）system,the energy efficiency can be improved effectively and the energy supply pressure can also be eased.Considering that the market demand will influence the energy price of electricity under the real-time price mechanism,there exists the game competition among different stakeholders.Accordingly,a noncooperative game model for multiple parks with CCHP system is established,in which the target of each park is to minimize the daily operation cost considering the constraints for power output of CCHP system and storage equipment.The proposed model can realize the collaborative optimization of various energy flows.Finally,the coordinated optimization control of three parks in a certain area is taken as an example.The simulation result shows that the model can allocate CCHP system output and purchase power reasonably,and daily operation cost of parks and peak-valley difference of power system will also be reduced.