Abstract: In order to solve status that traits of economic forest plus trees and elite clones can not be scientifically and reasonably classified because of the difficulty in quantify quality index, the lack of system, relationship and comprehensive on the methods of growth index contrast and synthesis grade. The plus trees and elite clones were classified by using the Fuzzy linear weighting transformation model of integrating quantitative and qualitative indexes, basis on surveying, selecting and clones tested for Walnut in the main product area in Bijie, selecting results of the clone for class Ⅰ, Ⅱ, Ⅲ were 5, 5, 4. The method has achieved very good effect due to extension selecting of plus trees and clones.