Of all 58 cases of knee osteoarthritis treated by acupuncture and moxibustion, 42 cases were recovered,(accounting for 72.5%), 14 cases were obviously improved (accounting for 24.1%), and 2 cases were ineffective (accounting for 3.4%). The total effective rate was 96.6%. This result demonstrated that acupuncture and moxibnstiou therapy has the good functions of dredging meridians and collaterals, activating qi and blood circulation, dispelling cold and dampness, and removing swollen to stop pain.