Abstract: Based on the most nearly alike in appearnce, properties, and uses of the wood of Beech familey all the Chinese timber species belonging to 6 genera (Fagus, Castanea, Castanopsis, Quercus, Cyclobalanopsis and Lithocarpus) in this familey can he classified into 15 groups of the commercial woods, namely, Beech, Chestnut, White Evergreen Chinkapia, Yellow Evergreen Chinkapin, Bitter Evergreen Chiakapin, Red Evergreen Chinkapin, Cerris, Prinus (White Oak), Ilex, Suber, White Cyclobalanopsis, Red Cyclobalanopsis, Red Tanoak, Glabrous Tanoak and White Tanoak. Table of the anatomical characteristics and their descriptive key of the 15 groups of the commercial woods mentioned as above were made too.