[Brief introduction of professor Yang Jia-san's academic thought].

The present paper introduces Prof. YANG's academic thought from acupoint theory, acupoint selection method, filiform needle needling methods, reinforcing and reducing manipulation, clinical acupoint association, syndrome differentiation treatment thought, etc. Essence of acupoints is "Shenqi" freely flowing out and in, and is not local tissues of "skin, muscle, tendon and hone". Deeply understanding the essence of acupoints is of an important significance. Reinforcing and reducing of acupuncture are one of core links for attaining clinical therapeutic effect and are paid great attention by physicians of past ages. Prof. YANG deeply red classical works, learnt from all schools of thought, gradually achieve mastery through a comprehensive study of the subject, simplifying something by cutting out the superfluous, forming own acupuncture reinforcing and reducing style. YANG's syndrome differentiation treatment thought includes following 3 characteristics: (1) reflecting the spirit of special recipe, special drug and special acupoint for special disease; (2) being good at combined acupuncture and drug; (3) flexible clinical thinking and methods.