After meniscal injury, rehabilitation can be carried out in the following ways: First, if there is no obvious fluid or blood accumulation in the knee joint, you can carry out alternate stirrups with both lower limbs in a supine position with weight, and sandbags can be tied around the ankle, with the weight generally increasing gradually from 3kg, in order to strengthen the calf muscles and quadriceps strength training, enhance the stability of the knee joint, which is beneficial to the recovery of meniscal injury and can prevent further meniscal injury. The second, the knee joint has obvious fluid or blood accumulation, can be performed against the wall static half squat, hip and knee flexion 45 °, feet apart and shoulder width, back against the wall, hands on top of the knee joint, each time adhere to 20 minutes, 2-4 times a day, can significantly enhance the quadriceps medial head muscle strength, so that the knee joint stability increased, conducive to meniscus repair.