Six localities of tree-ring samples in the Qinling Mountains have been listed in this paper. They are scattered in the mountain area from Huashan in the east to Taibai in the west. The tree-ring width chronologies have been developed and their statistics have been discussed by author. The results of response functions indicate that the tree-ring growth in most sites mainly responds to precipitation¡¦s variation except one high elevation site located in the Taibai Mountain.