The main purpose of this research was to explore culture shock and cross-cultural adaptation of foreign English teachers in Taiwan. According to the findings in this research, recommendations were made for foreign English teachers and educational organizations in Taiwan to serve as a basis of conducting further researches or setting relevantly educational policies. A convenient sampling was conducted, and six participants, including American, British, and Canadian teachers, filled in semistructured questionnaire and had in-depth interviews. The results were shown as follows: 1. Influence of culture shock: (1) The first impression in Taiwan was mostly negative feelings. (2) Guanxi and Face were the most distinguishing cultural characteristics. (3) Culture shock had little impact on life, but lack of English environment caused inconvenience. (4) Impact of work mainly resulted from management style, communicative mode, and supervisory system. (5) Classroom management emphasized on respon