Abstract: China is extraordinarily rich in flora which in their turn are very complex.Their orgin may trace back to a high antiquity,and what is more,it is one of the crtical regions for researching floristics of the flowing plants in the world.Through putting to order the recent materials,works have been done in the analytic and comparative study of the geographical elements and the floristic compositions of community dominant in different localities,and the author is thereupon able to classify them into 2 kingdoms,7 subkingdoms and 22 regions altogether.

Key words: Flora-regionalization-China