本論文探討部派佛教中根的觀念。根共有二十二種，論文中先比對相關文獻，證實二十二根的觀念是各部派所共有的，因此可推知二十二根是源自原始佛教；復從靜態結構與動態結構兩種觀點，探討二十二根間的關聯；最後從生命的觀點探究二十二根在生命的流轉與還滅所扮演的重要性，並指出：佛以生死還滅，故說二十二根。

In this paper, the concept of faculty is discussed from the viewpoints of different Buddhism Schools. There are 22 faculties. It is shown that the concept of 22-faculty existed in every school, which indicates that the concept of 22-faculty originates from Buddha. Then, a static structure and a dynamic structure are proposed to explore the relationships among those 22 faculties. Finally, the relationship between life and 22-faculty is discussed and points out that the Buddha gave the teaching of 22-faculty for explaining the rebirth of life and the extinction of life.