The absorbing material is a kind of composite material which is mixed, dispersed and pressed by micro scale sheet alloy soft magnetic powder and polymer, which has good function of electromagnetic noise suppression. It is used to eliminate the back and forth reflection of electromagnetic waves in the shielding cavity, reduce the interference of clutter on its own equipment, enhance the magnetic conduction effect, improve the magnetic field strength and effectively increase the induction distance. At the same time, it also effectively prevents electromagnetic radiation from interfering with and hurting the surrounding equipment and personnel.