Abstract: The aboriginal physiognomy was destroyed at the sap engineering constructing time,imitated rock is required to simulate the rock in background when camouflage is put in practice.The article developed high emulation dope,microcapsule phase change materials and inorganic foam absorbing wave material by the way of matching technique in optics,infrared and radar wave band,a sort of imitated rock for engineering orifice camouflage was made.The multichannel characteristic of imitated rock is similar to rock in background,the chromatic aberration is 2.9ΔL^*a^*b^*,the difference of radiant temperature is less than 4℃,the difference of coefficient of radar back scatter is 1.7dB,the need of camouflage is satisfied,it offers new material and means to imitate engineering orifice rock.