The Rotor Twister spinning method was used in this study successfully to fabricate with the hybrids yarn .The copper wire and PET filament were used as the core yarn and stainless steel wire used as the wrapping yarn respectively to fabricate the weft inlaid yarn .Investigate themaximum broken strength of the hybrid yarn .The weft inlaid double plain knitted fabrics were made by the 3.5Gtraverse knitted machine with the hybrid yarn and the co-weave-knit fabrics with the co-weave-knit machine .The thermal compressing with cross-laminating method made the composites.Changing the speed of rotor twister,the conductive fillers and inlaid ends in the composites to investigate the variation of volume resistance and the electromagnetic shielading effectiveness （EMSE）.
