Tseng Yu-chin's research interests lie in the area of migration, global mobility, gender and intimacy, citizenship studies and Asian politics. Her postdoctoral research explored the intersection of international mobility of higher education and cross-cultural marriage, which has conditioned the increase of transnational couples in third countries whose migration trajectories are largely shaped by multiple sets of state policies. In her doctoral project, "Becoming Taiwanese: The Politics and Struggles of Marriage Immigrants from Mainland China to Taiwan," she looked at social, political and legal struggles of female marriage immigrants from China to Taiwan and their collective movements to claim social justice. Part of this thesis was turned into a book chapter published by Routledge in 2014. In addition, based on her doctoral research, she is currently working on migrants’ resistances and reformulation of what is considered 'good citizens' (e.g. a good wife or good mother), in Taiwan.