With the development of smart grid, it is very important to acknowledge and control the participation degree of smart power users, resulting from its contribution to the efficiency and stability of the grid.In this paper, an evaluation model of the participation degree of smart power users based on evolutionary game theory is proposed.Firstly, the users’revenues are selected as the game elements and the whole benefit model of the users is constructed, including electricity price profit and the users’satisfaction profit constructed by quantifying their electricity using experience.Secondly, the users’ choices are taken as the strategic spaces and the user groups are classified, in order to build up the evolutionary game model among different classifications of users.After that, the replication dynamic equations of the participation degree are established.Finally, two simulation cases were performed to validate the feasibility and effectiveness of the theory and model.