In this study discuss with the electromagnetic absorption screen with thickness of 0.1cm which are made by Mn-Zn ferrite and unsaturated polyester resin to discuss the effect of electromagnetic absorption with different quantity of Mn-Zn ferrite and multi-layer. In the study by experiment, the quantity of Mn-Zn ferrite and multi-layer will effect the electromagnetic absorption. It would get the better electromagnetic absorption when match two layers, the best absorption values could be 33dB. When match three layers could efficiently double to triple increase the absorption bandwidth.