The logic of the role of collective action on government decision making is an important topic in the field of social risk governance. This paper constructs an analytical framework of the logic of the role of heterogeneous collective action on government decision-making from a stratum perspective based on four dimensions: psychology and beliefs, organization and communication, technology and media, and environment and negative pressure, and conducts a qualitative comparative analysis of 30 case groups based on the stratum attributes of action groups. It was found that the differences in the logic of collective action on government decision making among different stratum attributes were mainly manifested in the heterogeneity of the components of the logic of collective action on government decision making, and the unevenness of the strength of each influencing factor in the collective action. Further analysis of the mechanisms of these differences shows that collective action behavior with different stratum characteristics is mainly governed by multiple factors such as the relative position of the group in the social structure, survival situation, accessibility of resources and dependence on specific resources. Under the action of the multifactor coupling mechanism with stratum as the kernel, the logic of heterogeneous collective action on governmental decision making is presented in the form of differentiated factor combinations and unbalanced factor intensity distribution. This paper presents the internal structural differences of collective action from the perspective of the hierarchical heterogeneity of the actors, and also reveals the key dynamic mechanisms that generate the differences in the logic of collective action on governmental decision-making, which is useful for further improving the relevance of governmental decision-making. 

群体行动对政府决策的作用逻辑是社会风险治理领域的重要议题。本文从阶层视角出发，基于心理与信仰、组织与沟通、技术与媒介、环境与负压四个维度构建了异质群体行动对政府决策作用逻辑的分析框架，并以行动群体的阶层属性为基础，对30个案例分组进行定性比较分析。研究发现，具有不同阶层特质的群体行动对政府决策作用逻辑的差异主要表现在群体行动对政府决策作用逻辑构成要素上的异质性、各影响因素在群体行动中作用强度的非均衡性两个层面。对这些差异形成机制的进一步分析表明，具有不同阶层特质的群体行动行为主要受到群体在社会结构中的相对位置、生存处境、资源的可及性和对特定资源的依赖性等多重因素制约。在以阶层为内核的多因素耦合机制作用下，异质群体行动对政府决策的作用逻辑以差异化的要素组合和非均衡的要素作用强度分布呈现出来。本文从行动主体阶层异质性角度呈现了群体行动的内部结构性差异，同时也揭示了群体行动对政府决策作用逻辑差异生成的关键动力机制，对于进一步提升政府决策的针对性有所启益。