Abstract: Dispute resolutions have their strengths and shortcomings in the obligation and protection of disputants’ interests and relationship. In the process of dispute resolution in construction project， disputants will always try to apply a better strategy to gain more interests based on their own preference. In this sense， the dispute resolution is the process of evolutionary game equilibrium among disputants under bounded rationality. In this article the benefits and costs of dispute resolutions(ADR & Litigation) are first identified and quantified， and then an evolutionary game equilibrium model is offered. Based on the model， some suggestions relating to dispute resolution are brought forward in the end.