Abstract: Study on vegetation colony structure and the interception of light by a canopy is one of important fields of the study on canopy micro-climate.In this paper,the parameters of vegetation colony structure,up-to-date technique in the parameters obtaining,the model of the interception of light by a canopy and their relation are presented. On the basis of the existing results,the problems in the studies on vegetation colony structure and the interception of light by a canopy are discussed.