In response to the increasing literature on transnational higher education in host countries, this paper aims to identify prominent factors affecting the quality of transnational higher education in China, as perceived and reported by Chinese host universities. A qualitative data analysis was conducted on 122 self-appraisal reports on transnational higher education programmes submitted to China's Ministry of Education in 2017 by 112 Chinese host universities. The analysis identified and examined relationships between four interrelated factors: low foreign language proficiency among students, shortage of a sustainable supply of highly qualified teachers, low quality of curriculum design and implementation and deficiencies in institutional regulations. The findings are discussed in the context of the literature, revealing two issues in transnational higher education in China: using local Chinese teachers to teach the imported foreign courses and outsourcing foreign language teaching. The paper concludes with some limitations of the study and implications for future research.