Plaster in Traditional Chinese Medicine(TCM), plastering the affected part directly, working through the skin,can activate blood circulation,remove blood stasis,subdue swelling and alleviate pain. Shang Ke Xiao Yan Gao(SKXYG) of Jiang Su Province Hospital Of TCM as a plaster has been used to treat Knee Joint Osteoarthritis(KJOA) excellently for several decades.The aim of the research is to verify its curative effect objectively and contrast it with another plaster (Nan Xin Zi Tong Gao) through observing the...