The construction of new liberal arts, which realizes the deep integration of disciplines and aims at cultivating new compound talents, is the focus of the construction of humanities and social science majors in China, and puts forward new requirements for the core ability cultivation of students majoring in business administration. Through the survey, it is found that the school has taken some actions in the reform of students' core competence education and teaching, but the students' practical ability still needs to be improved, and the teachers' practical teaching experience is not enough. The content, system and objectives of core competence training need to be further improved. It is necessary to improve the curriculum system of student core competence training, strengthen teacher training, make full use of teaching resources and platforms, and jointly improve the cultivation of student core competence through the linkage of the three classes.