为更好地应对自媒体时代下网络舆论失控导致的网络暴力事件发生，网络平台在网络暴力舆论形成演化初期参与决策，可有效防止网络暴力舆论的形成。首先，基于网络暴力的诱发行为并考虑到平台、自媒体、网民内部自净化作用，界定了三者在网络暴力舆论形成初期的自治行为的成本和收益。其次，构建了“平台-自媒体-网民”三方演化博弈模型，并分析各主体的行为及其演化博弈稳定策略。最后，利用MATLAB进行数值仿真实验，验证模型及演化结果的准确性，为了进一步揭示影响这些各方合作的因素，探讨各方初始合作意愿与相关参数对系统的影响。仿真结果表明：网络平台采取强监管策略导向明晰，能有效增强自媒体与网民的合作意愿，有效遏制网络暴力舆论形成。

In order to better address incidents of online violence resulting from uncontrolled public opinion in the era of self-media, network platforms are involved in decision-making during the early stages of online violence opinion formation. This can effectively prevent the formation of online violence opinions. Firstly, based on the inducement behaviors of online violence and considering the internal self-purification effects among platforms, self-media, and netizens, the costs and benefits of their autonomous behaviors during the initial stages of online violence opinion formation were defined. Next, a "platform-self-media-netizen" three-party evolutionary game model was constructed, and the behaviors of each subject and their evolutionary stable strategies were analyzed. Finally, numerical simulation experiments were conducted using MATLAB to verify the accuracy of the model and evolutionary results. To further reveal the factors influencing the cooperation among these parties, the impact of their initial cooperation willingness and related parameters on the system was explored. Simulation results show that a strong regulatory strategy adopted by network platforms, with clear guidance, can effectively enhance the cooperation willingness of self-media and netizens, effectively curbing the formation of online violence opinions.