The quality of the international students’ cultivation system is pivotal to the high-quality promotion for higher education sustainability in China. This study aims to explore 23 international students’ opinions on their cultivation system at 6 higher education institutions in China by the qualitative approach of Iconic Legisigns-Guided Interviewing (ILGI). We found that the cultivation quality of international students needs to be promoted and the cultivation funding support of international student needs to be diversified. It is suggested that the government should improve the enrollment mechanism and the diversified cultivation system; optimize the cultivation concept of overseas students in China; establish the administrative management, supervision, and review system; build the dynamic monitoring of the scholarship system; and optimize the use of funds and establish a multi-channel funding system.