Abstract:In the present paper a comparison of family circumscription between Flora Reipublicae Popularis Sinicae (FRPS) adopted A.Engler‘s classification system of angiosperms (1936) and The Families and Genera of Angiosperms in China,A Comperehensive Analysis (FGAC) based on Wu et al.‘s system (2002) is given.It is not only benefit to grasping the viewpoint from Wu et al.s‘ system but also of adventage to understanding of current trend in limitation of family in angiosperm systematics.