There is no obvious dietary contraindication for knee osteoarthritis, and the most common people are middle-aged and old-aged patients. It is recommended that these patients try to eat as little cold, fried and spicy food as possible, and consume more liver and kidney tonic, bone-strengthening and bone-building food or traditional Chinese medicines, such as milk, eucommia, and hyssop. Osteoarthritis of the knee joint with joint cartilage degeneration as the main cause of the disease, it is recommended that the patient to avoid the knee joint to produce load activities, such as frequent up and down the stairs, climbing mountains, change lifestyle, more rest. Obese patients should reduce their body weight to reduce the load on the knee joint. At the same time, patients are instructed to perform muscle strengthening exercises around the knee joint to help strengthen the stability of the knee joint.