The denier of raw silk is enlarged by selected high denier cocoon silk and combined silk filament. The silk impregnating agent was mixed with hot water in order to enhance the softness of silk when reeling silk. After reeling, the silk and polyester partially oriented yarn（POY）were combined and textured by mechanical force and heat, and the silk multifilament with physic mechanical and geometric distortion was produced. Several silk multifilaments were fed together into the yarn carrier of coarse V-bed flat machine and grey cloth was knitted. The silk knitting fabrics with coarse style were produced through refining and drying. Such fabric, which bulkiness, elasticity and drapability are excellent, is suitable for kinds of knitting outer wear.