The methods of rehabilitation training after meniscus suture are: 1. 1-4 weeks after surgery: 1. Immediately after surgery, give external fixation, put pressure bandage on the affected limb and pay attention to elevate the affected limb; 2. If the injury is in the body of the meniscus, start partial weight bearing four weeks after surgery, 1/2-1/3 of the weight of the affected knee; if the injury is in the anterior and posterior angles of the meniscus, full weight bearing can be done immediately after surgery under the premise of straight splint; 3. Knee therapist Perform passive activities first, with passive knee flexion reaching 90° at 1 week postoperatively, 100° at 2 weeks postoperatively, 110 degrees at 3 weeks postoperatively, and 120° at 4 weeks postoperatively; 4. Active knee activities are performed at week 4 postoperatively, even though passive activities have reached 120° at 4 weeks postoperatively, active activities should still be within 90°; 5. Non-weight-bearing situations can be performed with tibial rotation to just natural stopped activities, avoiding impacts between the femur and tibia, and movements that can cause shear forces to form in the knee joint. 2. 5-7 weeks postoperatively: 1. For patients with meniscal body injuries, the affected limb gradually transitions from partial weight bearing to full weight bearing 6 weeks postoperatively, during which time an elastic band can be used to assist with weight bearing; for patients with anterior and posterior horn injuries, full weight bearing under the protection of a straight splint is possible immediately after surgery; 2. 120° or more; 3. In the process of knee flexion, pay attention to the training of muscle strength around the knee joint, mainly in the semi-squatting position, paying attention to the dip line from the patella downward, not exceeding the toe. 3. 8 weeks after surgery: you can be fully weight-bearing, active knee flexion can also exceed 120°, and you can start full weight-bearing training after 3 months.