Knee arthroscopy is a minimally invasive procedure with the following advantages and disadvantages: 1. Advantages: Knee arthroscopy can perform treatment of the meniscus of the knee, as well as free body removal, synovial cleaning, ligament reconstruction and other surgical procedures, with favorable benefits such as less trauma and faster postoperative recovery. Knee arthroscopy is now an important technology in the development of knee technology, with excellent minimally invasive results.2. Cons: Knee arthroscopy is relatively narrow for the treatment of diseases of the posterior compartment of the knee, especially for the treatment of swelling behind the posterior cruciate ligament, or avulsion fractures of the posterior cruciate ligament stop, knee arthroscopy is not able to achieve the desired effect, and often requires incisional surgery. Although knee arthroscopy is a minimally invasive surgical technique, it has certain benefits and drawbacks.