同英文摘要 This research aims to explore culture shock, language barrier and loneliness on the international postgraduate students in Taiwan. The survey method has been conducted. There are 125 international postgraduate students from 15 countries within 22 universities involved in this research. The results show that each score of ‘culture shock’, ‘language barrier’ and ‘loneliness’ are lower than median (the range of the score is 1 to 5, 1 is the lowest score, and 5 is the highest score). Compared with ‘language barrier’, the female is significantly higher than the male. Compared with ‘culture shock’ and ‘language barrier’, the score of the master students are significantly higher than the Ph. D. students. The relationships among ‘culture shock’, ‘language barrier’ and ‘loneliness’ shows high positive correlations. It indicates that the ‘culture shock’ and language barrier’ can highly predict loneliness (R2= .37). This result can provide educators to understand the language learning and psychological situations of international postgraduate students for setting the strategies to promote their language learning and psychological health.