The repair capacity of articular cartilage is limited after injury.In recent years,with the development of biotechnology and tissue engineering technology,progress has been made in various aspects in the studies of articular cartilage,and more and better programs have been proposed for the management of articular cartilage injury.This article focuses on the advances in the repair of articular cartilage defects in such aspects as conservative treatment,transplantation,tissue engineering and gene engineering of the cartilage.