Abstract: Based on 72 characters of plant growth habits, extenal morphology,wood anatomy,flower structure,pollen morphology, embryology and chromosome number,a cladistic analysis of Stachyoraceae and related taxa, such as Dilleniaceae,Ochnaceae,Theaceae, Actinidaceae and Staphylraceae ,was car-ried out using maximum parsimony method. The result showed that Staphyleaceae seems most closely relate ot Stachyuraceae.The other taxa being away from Stachyuraceae are Actinidiaceae,Theaceae, Ochnaceae and Dilleniaceae respectively.The result of chadistic analysis is consistent with those of palynongy,embry-ology and molecular biology to some extent.

Key words: Stachyuraceae