Abstract: Blending ratio is an important factor affecting the wearability of blended fabrics. This paper studied the quantitative relations between wearability and blending ratio of linen/polyester (L/T) blended fabrics based on the datum obtained concerning wearability of the blended fabrics with various blending ratios. The fuzzy comprehensive evaluation method is employed to forecast the blending ratio based on the wearability of the blended fabric.