Abstract: Aimed at improving silviculture practice of Cunninghamia lanceolata by providing a better understanding of site conditions,the present paper offers the recent research finding on systematic geographic regionalization and site classification based on systematic studies of climate (water,heat),topography,bed rock,soil and vegetations associated with chinese fir.3 zones and 5 regions are recognized,with special reference to climate and physiography. The regions are subdivided into subregions.Site types are grouped into groups and distincts based on mesorelief,microrelief (aspect,slope position), soil and vegetations.In addition,the site index table is prepared based upon tree hieght in definite age;another is besed upon relief and soils with method of multi-factor.The application of site classification and site quality evaluation are proposed for silviculture practice. Findings mentioned above provides guide lines for intensive cultivation of chinese fir.It is hoped to be useful to locating commercial production bases,choosing suitable sites and predicting productivity as well as handling silvicultural treatments with the purpose to raise the productivity of Chinese fir plantation.