This qualitative exploratory study investigates Vietnamese Graduate Students' experiences at a vocational university in Taiwan. The Ministry of Education (MOE) has adopted a serial of policy to internationalize Taiwan's institutions of higher education in order to survive the global competition. The policy includes encouraging the colleges/universities to adopt English curriculum for the international students to pursue their studies in Taiwan. Several studies have examined the international students' experiences at academic universities in Taiwan. However, few studies in the past investigated the international students in the setting of a vocational university. As academic and vocational colleges/universities plan to recruit more international students, understanding the Vietnamese students' adjustment problems and their coping strategies in a vocational university is a great starting point for accumulating related knowledge. Twelve participants were interviewed in the study. The language and communication-related problems were the major difficulties reported by the participants. The coping strategy the participants frequently used was to seek for social support. The results indicate that the vocational university needs to be more internationalized and to provide more supporting services in order to better serve the future international students.