PurposeIn response to the emergence of a strong cross-border student flow of postgraduate students from mainland China to the Macau Special Administrative Region (Macau), this study examines the motivations and experience of a special group of doctoral students: college teachers working in Guangdong Province and simultaneously pursuing PhD degrees at private universities in Macau.Design/methodology/approachUsing a qualitative research method, thirteen college teachers were interviewed.FindingsThe research findings reveal their motivations for pursuing doctoral studies in Macau, and the difficulties they faced and gains they obtained from this experience.Originality/valueAll the findings indicate a potential expansion of the role of Macau’s higher education system. Once merely a stepping-stone, it is now an acceleration site for brain circulation between Macau and Guangdong as part of a regionalization strategy for China’s Greater Bay Area.