Abstract: This paper investigates the feasibility of determining fabric softness by testing its tensile strength.Having got the optimal parameters of tensile strength testing,the indexes of the test result are compared with those of KES,FAST and fabric hardness testing machine LLY-01B analysis is carried out using SPSS software.The result reveals that they are in good agreement.The tensile strength testing method better reflects the surface and mechanical properties of the fabric such as thickness,face density,bending rigidity,and shear.Finally,a regress equation of tensile strength testing indexes and mechanical properties of the fabric is derived.