Abstract: Forest site classification and forest site differentiation should not be confused,as they are two different systems.Besides general principles put out, there are four bases for site classification:1. Site pedested; 2.Site shape and structure; 3. Bioclimatic fertility; 4. Site superficial charateristic.The classification system of forest site consists of forest site series, site type class, site order, site type group, and site type (subtype).The rule which consists of site order, site type group, site type (subtype) for naming forest site has been formulated, and the site classification of MuFu Mountain has been taken, as an example.

Key words: Site classification, Site differentiation, Site pedested