Myofascial pain syndrome is one of the major cause of chronic pain and trigger point injection, stretching, spray and electrical therapy are often used in clinical situation for treatment of myofascial pain syndrome. Myofascial pain syndrome is characterzied by the existence of a hypersensitive region, called the trigger point in a muscle or in the connective tissue, together with palpable noble, stiffness, limitation of motion and referred pain when trigger point is stimulated. Physiologically, they represent a self-sustaining vicious cycle of pain-spasm-pain. The purpose of this study is to illustrate mechanisms of pain by stimulation of acupuncture and trigger point, to introduce clinic application of orient and western stimulative point (acupuncture, trigger point)for treatment of MPS(myofascial pain syndrome), to make physiotherapist use both stimulative points for treatment of MPS.