Compound array in the DRA area of insects can receive the polarized light in the sky and abstract its polarization information, which enable the insects to navigate. According to the structure of DRA compound array elicited from biological anatomy, we put forward a kind of simplified array architecture made by MEMS technology, which has small volume, light weight, large visual angle and can perfectly obtain the polarization information of the sky all through 180° by combination. Then, we build the model of DRA compound array in ZEMAX, and educe that the material and structure of the model of DRA compound array are reasonable and can be used to detect the polarization information of the sky light effectively.