With the third generation of medical education reform put forward,medical education based on system and guidance with abilities has become a global medical education reform trend.One of the goals of medical education is global medical colleges should train students to make preparation for life-long learning,and form a lifelong learning culture gradually.Therefore,training medical students' life-long learning ability is the positioning of 21st century medical education.This article according to our country' s present situation of medical students' training model,expound the definition of life-long learning,training medical students' life-long learning ability the necessity and importance and effective methods of strengthening medical students'life-long learning ability.