Knee tapping can significantly reduce knee pain caused by various knee disorders by improving the blood flow around the knee joint, which can have a very good effect of opening up the meridians and relieving pain. The method of patting the knee is mostly seen in the middle-aged and elderly, as many of them have very serious knee osteoarthritis, and by patting the knee, it can significantly reduce the pain caused by osteoarthritis of the knee and the unfavorable movement of the limb joints. Chinese medicine theory has a meridian, follow the meridian pat knee to stimulate the local acupuncture points and meridians, can play a very good effect of the meridian. By stimulating the acupuncture points and meridians can play an unexpected effect, such as relieving local pain, improving the mobility of the limbs, and also promoting local blood flow, playing a very good role in activating blood circulation.