In this paper, the content about cetasikas in Shelifu Apitanlun is first analyzed. 29 cetasikas are identified from 55 items listed in Chapter Sense Fields (CSF) and some errors in Chapter Associations (CA) are found and modifi ed as possible. Based on the preliminarily analysis, (1) The mapping among 29 cetasikas in CSF and 71 terms (including 7 vijñāna-terms and 64 cetasika-terms) in CA are built; (2) Association relationships among those 71 terms are constructed and an association diagram is developed; (3) Sabbacuttasādhaṇa ( 徧一切心所) and quasi-Sabbacuttasādhaṇa ( 準徧一切心所) are identifi ed; (4) There are 11 phassas in 71 terms. A classification framework is developed for these 11 phassas and explained how to expand 11 phassas to 16; (5) It is found that, when the mental consciousness element ( 意識界) is arisen, its ethical properties (good or bad) are also determined. In 1966, Mizuno Koubann pointed out that the number of cetasikas in Shelifu Apitanlun should be changed to 38 which can be merged into 33. Mizuno Koubann’s theory is analyzed in detail. Several problems of that theory are raised. It will be more appropriate to say there are 29 cetasikas in Shelifu Apitanlun.
