Abstract: Eight types of vegetative organs were suggested with regard to the trees in China.Also an overall statistics and analysis had been given to the correlation between the characteristics of tree types and their tesonomical characters:family, genera and species.In China,there are 11 942 tree species,including wild and cultivated one,belong to 213 families and 1 549 genera.Calculations show that the number of simpleleaf tree species is bigger than the compoundleaf tree species.The rates between genera and species of the simpleleaf species are 66%and 78%respectively,and those of compoundleaf species are 20% and 16%.If the calculation is made according to the simpleleaf veined type,the rates of pinnate species are 71% and 77.5%,of palmate species are 24% and 16% and of paralled veined species are 5%and 6.5%.Some conclusive researches have been also made on the representative species of each type as well as the main lines of the classification of their genera and specices and finally ways and clues have been suggested to further researches of the tree’s vegetative organ classification with regard to their branching system,pith type,bud type,vascular type,nervation of the third and higher degree,silone and appendages.