According to the needs of bionic polarized navigation to sky polarization pattern, a polarization imaging system, based on fish-eye lens with the field of view of 180° is designed to gather sky polarization information. Besides, the collected two-dimensional plane polarization pattern through Matlab software processing can revert to the spatial polarization pattern. The polarization imaging theories are introduced. The experimental instruments are calibrated, imaging formula and parameters of fisheye lens are obtained in the experiment And the images collected by polarization imaging system are corrected in the field of viewing. By using of the calibrated systems and imaging The spatial polarization pattern after calibration and correction is consistent with the single Rayleigh scattering theory model. And they are in a high degree of similarity, azimuth polarization can reach 82.4%, and the degree of polarization similarity is up to 96.91%.