Under the current international and domestic situation，“double-class” universities attach importance to the cultivation of international quality of undergraduate talent. Taking the practice and international curriculum week of Sichuan University and the internationalization quality of undergraduates as an example，the influencing factors and existing problems of undergraduate internationalization talent training are clarified. This paper proposes that Sichuan Province should focus on summer schools and other training measures，and train more international undergraduate talent to meet the needs of the times and social development through the domestic and internationalization of universities.