In order to study the wearability of women's knee high sock, 7 kinds of common women's knee high socks on the market were selected as research object, which were weaved with different blending ratio and made of different materials. The wearability was tested including air permeability, moisture permeability, abrasion resistance, pilling resistance, tensile elastic recovery performance. Approximate optimal comprehensive judgment method was used to make a comprehensive evaluation of the wearability of women's knee high sock, and sort the wearability of women's knee high sock. It was pointed that the wearability of women's knee high sock which contained high proportion of cotton fiber was relatively good. The conclusion provided theoretical guidance for the production and purchase of women's knee high sock.