[Unearathed ancient pulsological books and theoroy of "three parts with nine palpation sites"].

Textual research is made on the evolution of the theory of "three parts with nine palpation sites" in TCM. It is concluded that the theory, having received the influence of ancient astrology and arithmatics, was sprouted in the Eastern Han Dynasty and still is valid today. It further points out that the arrangement of channel order, and selection of channel title were all influenced by the theory of "Three Parts with Nine Palpation Sites".