Abstract: Since the 18th National Congress of the Communist Party of China, General Secretary Xi Jinping has been very concerned about the growth of youth. He has published a series of important expositions on youth work on many important occasions. They shed light on the path and method of carrying out youth work, point out the direction of the development and reform of the Communist Youth League, and form Xi Jinping’s important thoughts on youth work. These important thoughts are rich in connotation and philosophy, which point out the development direction for the education and growth of youth and also provide scientific ideas and profound enlightenment for youth work in the new era. As a student organization for self-education, self-management, self-service and self-supervision, the students’ union is the backbone of colleges and universities to carry out youth work. It is the era proposition for the development of students’ union in colleges and universities to learn and comprehend Xi Jinping’s important thoughts on youth work, and to strengthen their own organization to better serve the development of youth.