To compare the therapeutic effect of acupuncture plus moxibustion and simple acupuncture in the treatment of patients with knee osteoarthritis (KOA) of 
Fifty-eight KOA patients with yang-deficiency syndrome were chosen and randomly divided into acupuncture plus moxibustion group (
Twenty days and 1 month after the treatment, the scores of VAS, and KOA pain, stiffness and motor function of WOMAC were significantly decreased in both groups in comparison with their own pre-treatment (
Acupuncture plus moxibustion is significantly superior to simple acupuncture therapy in relieving symptoms of KOA patients, and also has a better post-effect.