在港口资源整合大背景下，探讨政府和港口之间的决策互动影响关系及其均衡策略状态的实现条件。首先，以沿海某省港口为实例，分析整合中各参与主体的策略选择和收益关系，构建了政府与两个港口之间的三方演化博弈模型。其次，求解系统的演化稳定解，并揭示不同管理政策下港口的行为模式。最后，利用数值仿真分析了参数调整对三方策略选择的影响进程，探讨了促进港口间有效合作的措施。研究表明：政府是整合策略的稳定参与者，而港口是条件参与者，且港口之间决策相互影响，有很强的一致性；当港口被施加一定外力（即政府措施）时，三方博弈结果更趋向于整合均衡状态，这为政府参与港口资源整合过程提供了理论支撑；同时，港口之间的规模差以及调整成本也会影响整合进程，大规模港口和小规模港口表现出不同的整合策略偏好；政府可以通过设置和调整转移补偿和补贴的力度，促进港口资源整合的实现和稳定。研究过程有助于理解政府和港口间的策略互动机制，为后续制定合理的资源整合方案提供理论支撑。

In the context of port resource integration, this study delved into the interactive decision-making relationship between the government and ports, as well as the conditions for achieving equilibrium strategy states. Firstly, taking a port in a coastal province as an example, this paper analyzed the strategic choices and profit relationships of participating entities in the integration, and constructed a tripartite evolutionary game model among the government and two ports. Secondly, it solved for the evolutionary stability solution of the system, and revealed the behavior patterns of ports under different management policies. Lastly, the impact process of parameter adjustment on the selection of third-party strategies was analyzed through numerical simulation, and measures to promote effective cooperation between ports were explored. The study shows that the government is a stable participant in the integration strategy, while the ports are conditional participants whose decisions mutually influence one another, showing strong consistency; When the ports are subjected to certain external forces, namely government policies, the tripartite game tends to move toward an integrated and balanced state, which provides theoretical support for the government′s participation in the process of port resource integration; Meanwhile, the difference in scale between ports, as well as adjustment costs, will also affect the integration process, and large-scale and small-scale ports have different integration strategy preferences; The government can promote the implementation and stability of port resource integration by setting and adjusting the intensity of transfer compensation and subsidies. The research process helps to understand the strategic interaction mechanism between the government and ports, providing a theoretical basis for the subsequent development of reasonable resource integration plans.