Abstract: The mechanical properties which were tested first and basic values of fabrics and fusible interlinings were selected and analyzed.The qualities of fusible composites were classified into three groups: good,medium and bad.The concluded values were dealt with mathematical method and the 95% range of mechanical properties and characteristic parameters of fabric and fusible interlinings was obtained.According to the 95% range,the charter of the fabrics and fusible interlinings was constructed and the apparel industry was gained good results according to this chater.