Abstract: Six kinds of shrink-proof finishing technologies such as hydrogen peroxide，sodium hypochlorite，potassium permanganate，chitosan，hydrogen peroxide/chitosan and sodium hypochlorite/chitosan were respectively taked for the wool fibers and wool fabrics shrink-proof fnishing experiments. Such changes as breaking strength of wool fibers，frictional performance of wool fibers，shrinkage rate of wool fabric and surface morphology of wool fibers before and after the shrink-proof finishing were measured. The finishing effects of various shrink-proof finishings were analysied. Of the six shrink-proof finishing methods，the hydrogen peroxide/chitosan treatment was the best treatment for wool shrink-proof finishing through the comprehensive comparison in fiber damage，fabric shrinkage performance and environmental characteristics.