"Corporate Social Responsibility" (CSR) is a key issue in public relations research. In a certain sense, the concept of public relations is derived from a particular understanding of the practice, by corporations, of "social responsibility." Twenty-six articles on CSR were investigated, from six journals about public relations and communication, from the US, Mainland China, and Taiwan. This paper summarizes the academic research that has been done on the topic of CSR in public relations in these three regions, and discusses the different approaches taken to issues across the field. Comparisons and analyses are made through the following six dimensions: source of articles, time of publishing, research topic, contributions to theory, research methodology, and research apparatus.