With the rapid development of international education, China has become a popular destination for international students. In this context, whether students settle in China or return to their hometowns after graduation is a matter of interest. Based on a recent questionnaire survey circulated among international students in Nanjing, Jiangsu Province, and on interviews conducted there, this study applies logistic regression models to examine the determinants of their intentions and the mechanism of their decision to either settle or return. In addition, the gender gap is studied to explore how male and female international students are differently influenced by various determinants. The results show that most international students are satisfied with their experience of studying in China and with their social environment but have less understanding of Chinese policies. The results also indicate that family obligation, social ties, working conditions, and social and policy environment have a significant impact on international students' intentions. From the gender perspective, family ties and labor market play different roles in the decisions of male and female students, while marital status and policies influence both genders. The results reveal the mechanisms of settling and returning, which may have implications for the Chinese government in its desire to retain foreign talents.