The entire process of minimally invasive arthroscopic surgery involves anesthesia, then surgery, and finally bandaging. Minimally invasive arthroscopic surgery works by placing a high-definition, wide-angle, rod-shaped optical lens into the joint through a small incision in the skin, and then transmitting the structures inside the joint through a fiber optic fiber to a monitor, which magnifies them into a clear image to view lesions in various areas of the joint. The operation is performed under anesthesia, then an incision is made on both sides of the patella, and arthroscopic surgical instruments are placed to explore the joint cavity in turn. The synovium is usually cleaned, the meniscus injury is sutured or repaired, the free body is removed, and the joint cavity is then well irrigated. Finally, the knee is wrapped with an elastic bandage and sent to the ward after being awake. The whole process of arthroscopic microsurgery can use various special microscopic instruments and probes to cut, suction, suture, fix and repair the diseased tissues after accurate diagnosis is completed. Therefore, it has the advantages of high diagnostic accuracy, small surgical trauma, fast recovery and good functional recovery when performed in regular hospitals.