自媒体强化了公众议程设置的能力,而公众在不同自媒体议程中可能具有不同的行为逻辑与表达基础。本文创建了一个整合分析框架,并结合典型事件的现实数据与描述,对自媒体议程设置进行特征分析。研究显示,公众更倾向于自发参与以生活经验为表达基础的议程;以情感认同为传播策略通常更能迅速地放大议程影响力;自媒体并不是公众专业知识分享的主议程平台;利益群体在议程设置中更多地将自媒体作为行动工具。相应地,政府角色定位的核心在于最大限度地利用自身的信息优势,提升公众在公共事务的决策与认知能力。 Since the media has strengthened the capacity of the public agenda setting, the public may have different behavioral logic and expression basis in different self-media agendas. This article creates an integrated analytics framework that combines the actual data and descriptions of typical events to characterize the self-media agenda setup. Research shows that the public is more likely to participate spontaneously in the age-old agenda based on life experiences. It is usually more rapid to amplify agenda influence through the use of emotional identity as a communication strategy. Since the media is not the main agenda platform for public professional knowledge sharing, More use of the media as a tool of action in the agenda setting. Correspondingly, the core of the role of government is to maximize the use of its own information superiority, to enhance public decision-making and cognitive ability in public affairs.