This experiment uses the different volume percent the aluminum oxide powder with unsaturated polyester resin mix manufacture aluminum oxide compound level, causes it to become multilayered the compound material to protect the curtain. Discusses its different volume percent the compound material to the electromagnetic wave absorption effect electromagnetic wave camouflage effect and to the electromagnetic wave absorption and the camouflage frequency width influence. This findings knew in the absorber compound material the aluminum oxide powder content must only 5%, also the match constitutive property protects the curtain level to be allowed to enable the electromagnetic wave absorption, the camouflage, the frequency width to achieve the best potency.