Abstract: In response to the increasingly stringent environmental requirements and the implementation of mandatory emission reduction regulations worldwide, energy conservation and emission reduction have gradually become the mainstream direction of the ship industry development. Therefore, it is particularly important to promote the construction of ship clean energy. In the study, assuming the limited rationality of both parties, this paper constructs the government and ship evolution game model, and analyzes the behavior of both parties by simulation. The results show that in a static game, the strategies of the two game players influence each other and constantly adjust according to their own returns, which cannot reach a stable equilibrium state. Assuming the government changes the strategy, this paper introduces the reward and punishment mechanism according to the probability change, and obtains the dynamic optimization strategy, the dynamic optimization strategy is obtained, and the two-player game process is simulated by the Vensim, finding the Nash stable equilibrium point of the system, and the game results converge and reach a steady state. Therefore, it is recommended that the coordination mechanism between the two main parties be optimized, that importance be attached to the benefits of the active development and conversion of ships to clean energy, and that a systematic mechanism of incentives and penalties be established in order to protect the marine environment and achieve a harmonious coexistence between mankind and the sea.