Prof. WU Lian-zhong not only has great theoretical attainments and rich clinical experience, but also is good at summarization and study, especially, systematically and deep study on various kinds of pain from etiology, pathogenesis, characteristics, classification and syndrome differentiation, treatment method and point selection and other aspects, and sums up the 12 treatment methods such as regulating mental activities, removing obstruction in the channels, opposing needling, blood-letting puncture, sixteen cleft points, warming the channels, resistant needling, Su needling, surrounding needling, tripod needling, penetration needling and dragon-tiger contending method, which are of very important significance for guiding clinical acupuncture analgesia.