Anterior cruciate ligament reconstruction is the preferred treatment to restore the original activity level of patients. The Single-leg drop jump can not only identify high-risk exercise strategies, but also provide a standard for the rehabilitation process of anterior cruciate ligament reconstruction. This paper conducted a combined search of " Single-leg drop jump, anterior cruciate ligament reconstruction, biomechanics" through CNKI, PubMed, Embase and other databases, summarized the biomechanical changes of Single-leg drop jump after anterior cruciate ligament reconstruction and related intervention methods, which will help anterior cruciate ligament reconstruction adjust rehabilitation strategies after surgery and avoid high-risk actions with secondary injuries. The analysis of Single-leg drop jump after anterior cruciate ligament reconstruction is of great significance for clinicians and rehabilitation therapists to guide the formulation and adjustment of rehabilitation treatment plan, improve the postoperative rehabilitation efficiency of anterior cruciate ligament reconstruction, and help patients return to sport as soon as possible.