Hip arthroscopy has developed rapidly in recent 10 years, and has become the most important technique in hip surgery. This issue of the Orthopaedic Journal of China focuses on the development of hip arthroscopy in China in recent years, involving the basic techniques of hip arthroscopy, as well as the treatment of hip infection, labial lesions, femoroacetabular impingement, early femoral head ne- crosis and acetabular dysplasia. Standardized training of hip arthroscopy techniques should be enhanced, while criteria for accessing hip surgery and expert consensus on hip arthroscopic diagnosis and operation specification should be set up. In addition, sports medicine, joint surgery, imaging, ultrasonic diagnosis, rehabilitation and nursing teams should be combined to be a multi- disciplinary group to improve fast booming of hip surgery.