网络亲社会参与极具社会意义，但相较于对突发公共事件网络风险行为的研究热情，学术界对其还未有足够重视。要研究这一领域，首先应当明确如何从概念上去认识、理解，以及测度它。为此，本文设计了一个二阶段研究方案。首先通过网络文本采集与内容分析法，从行为表现视角来分析网络亲社会参与类别，从而解析用户参与内容，初步形成概念维度；其次引入量表开发的一般路径，进一步通过实证研究探索、验证概念维度，并在此基础上发展出有效的测量工具。研究发现，网络亲社会参与是社交媒体用户在线参与的重要内容，作为一个多维概念，它具有三个核心维度，包括“情感支持”“网络贡献”“爱心行动”，可以通过16个题项来实现有效测量。

Online prosocial participation itself has great social significance, but compared with the research enthusiasm of network risk behavior in public emergencies, the academic community has not paid enough attention to it. To study this field, we should first clarify how to recognize, understand and measure it conceptually. Therefore, this paper designs a two-stage research scheme. Firstly, through the method of network text collection and content analysis, this paper analyzes the behavior categories of prosocial participation from the perspective of behavior performance, so as to analyze the specific behavior performance and initially form the conceptual dimension; Secondly, the general path of scale development is introduced to further explore and verify the conceptual dimension through empirical research, so as to develop effective measurement tools on this basis. It is found that network prosocial participation is an important content of users’ online participation; Online prosocial participation is a concept with three core dimensions, including “emotional support”, “Online contribution” and “charitable action”, which can be effectively measured through 16 items.