Electronic peer feedback (e-PF) has offered a number of benefits to English as a foreign language (EFL) students' academic writing competence and reflective thinking. However, little research has been conducted to examine whether e-PF can be incorporated in Confucian heritage culture (CHC) contexts. With a sample of 40 Vietnamese university students, the purpose of this study was threefold: (a) to explore whether e-PF improved students' global and local features of EFL academic writing; (b) to investigate whether e-PF provoked students' reflective thinking; and (c) to determine whether the two core principles of Confucian values, namely, the concept of face and power distance influenced the implementation of e-PF. Data were collected through pre- and post-questionnaires, e-PF content, and reflective logs. The qualitative and quantitative results showed that e-PF improved the quality of global and local writing aspects. Using e-PF also espoused both e-PF providers and receivers to develop reflective thinking by heightening their cognitive processes. Students were found to overcome the Confucian cultural barriers to get engaged in giving and receiving critique from their peers. The study, therefore, adds to the existing knowledge about the significance of e-PF in improving students' writing skills and nurturing reflective thinking in CHC cultures.