Corporate Social Responsibility (CSR), as a key concept in management, investigates how companies interact with stakeholders and the social and environmental impacts of their operations. In platform-based businesses, this concept gains particular significance because such enterprises are directly connected with a large number of users, producers, and other stakeholders. The objective of this study is to examine the antecedents and outcomes of CSR in platform-based businesses. The research method employed in this study is meta-analysis. The software used for statistical analysis was CMA2. The data sources reviewed included scientific websites and academic databases such as Google Scholar, ScienceDirect, and Elsevier. To investigate the antecedents of CSR, a total of 150 articles were reviewed, of which 30 articles were selected for the final meta-analysis. The results indicate that awareness, learning, and organizational culture exhibit the highest correlations with CSR. Regarding the outcomes of CSR, 168 articles were initially reviewed, and 39 were included in the final analysis. Overall, CSR has the most substantial impact on increasing customer loyalty and also contributes to enhancing brand image and employee satisfaction. Corporate social responsibility can strengthen trust and foster positive relationships with stakeholders. Furthermore, CSR initiatives also affect additional costs and reputational risks, although these associations are less pronounced.