1, patient education: self-behavior therapy (reduce unreasonable exercise, moderate activity, avoid poor posture, avoid prolonged running, jumping, squatting, reduce or avoid climbing stairs), weight loss, aerobic exercise (such as swimming, bicycling, etc.), joint function training (such as knee flexion and extension activities in the non-weight-bearing position to maintain maximum joint mobility), muscle training (such as hip OA should pay attention to the training of the abductor muscle group). etc. 2.Physical therapy: mainly to increase local blood circulation and reduce inflammation, including heat therapy, hydrotherapy, ultrasound, acupuncture, massage, traction, transcutaneous electrical nerve stimulation (TENS), etc. 3. Mobility support: mainly reduce the weight-bearing of the affected joint, cane, crutches, walkers, etc. can be used. 4, change the line of negative gravity: according to the OA associated inversion or valgus deformity, use the corresponding orthopedic support or orthopedic shoes, in order to balance the load of the joint surfaces.