As pivotal mechanisms for dispute resolution in civil litigation, settlement and mediation effectively curtail the escalation of litigation, reduce litigation costs, achieve the resolution of conflicts at the preliminary stage and in substance, and facilitate the transformation and upgrading of social governance models. However, the doctrinal study of law presents certain limitations in the research of dispute resolution mechanisms. Therefore, aiming to promote the refinement of dispute resolution mechanisms and enhance the efficiency of reaching settlements and mediations, this paper seeks to transcend the limitations inherent in doctrinal legal studies by employing game theory as a methodological tool to explore the interactions and dynamic decision-making behaviors among multiple parties during the civil litigation process. The research finds that reducing the costs associated with settlements and mediations, narrowing the gap in the parties’ predictions of litigation outcomes, and refunding the case acceptance fees in mediation can promote the success of settlements and mediations in the first instance of civil cases. After partially amending this conclusion with the concept of the rule of law, and considering the actual judicial situation, the following recommendations are proposed: promoting the exchange of information between plaintiffs and defendants to form a correct consensus on the case; reducing the costs for parties in civil litigation to reach settlements and mediations; and refunding the case acceptance fees to the plaintiff without imposing them on the defendant when a case is concluded through mediation.