China Renmin University implements a six-year flexible academic system, and undergraduates can graduate in 3-6 years. The 6-year flexible academic system is based on completing undergraduate studies in 4 years. Students complete the required credits within 4 years, and those who meet the requirements can graduate. Students with learning ability can graduate one year earlier if they complete the required credits within three years. Students who have difficulties in learning and fail to complete their studies within four years will be given two more years to make up for it and allowed to complete their undergraduate studies within six years.