This study used questionnaires to explore the relationship between country image, national identity and global citizenship of Taiwan senior high school and vocational high school students. Several valuable results were found as follows: 1. Students’ country images affect their national identities, especially the variables of “industry and life”, “culture” and “civic society”. 2. Students’ national identities affect their global citizenships, especially the variables of “cultural identity” and “ethnic identity”. 3. Students’ country images affect their global citizenships, especially the variables of “culture”, “history” and “ecological resources”. 4. Students’ country images and national identities can better predict their global citizenships than country images only.