This research is to investigate the effect of electromagnetic wave absorption by changing the directionality of double-deck stainless steel knitting film. High/low impedance of blended stainless-steel conductive fibers is used as the main material with the different densities of needle to weave the knitting film as the electromagnetic wave absorption subject. In this study, the different impedance values of blended stainless-steel are used to design the best electromagnetic wave absorption knitting film with the different rotating angles to test the best electromagnetic wave absorption.