In terms of tree type, tree height, diameter at breast height, crown width, stem strength, wood density, foliage layer and root morphology, which were all related with the wind-resistance, graduation and comprehensive evaluation of tree species wind-resistance were studied by comprehensive evaluation and grey relational grade method in this paper.For 82 tree species in Zhanjiang city, the classification result was that:They were classified into four classes including class Ⅰ with 19 species, class Ⅱ with 20 species, class Ⅲ with 31 species and class Ⅳ with 12 species, and grey relational grade was much fitter to evaluate and grade the wind-resistance of tree species than comprehensive evaluation.