Abstract:With the increase of people's awareness of sports and the rapid development of social transportation, the number of patients with joint injury has also increased significantly, and anterior cruciate ligament (ACL) injury is the most common ligament injuries. The standard surgical method for ACL injury is to use tourniquet for anterior cruciate ligament reconstruction (ACLR) under arthroscopy. Using tourniquet in ACLR can reduce intraoperative bleeding,remain a surgeon's field of clear vision and provide great convenience for the operation. However,with the trend of rapid rehabilitation in orthopedics and the improvement of patients' requirements for postoperative rehabilitation, the complications caused by using tourniquet during operation have attracted more and more attention.In order to reduce the occurrence of tourniquet complications, improve postoperative comfort and accelerate the rehabilitation process, the scholars continue to explore how to use tourniquet accurately and safely. This paper reviews the application status, advantages, disadvantages and application trend of tourniquet in arthroscopic ACLR.