As one of the valid sources to measure the global climate changes, snow has its own thermal radiation polarization properties, which are affected by multi-factors. For quantitative analysis of the effects of single factor and the interactions between factors on the thermal radiation polarization properties of snow, on the basis of traditional analysis, we design a three-factor and three-level orthogonal test. The results show that the detecting angle, azimuth angle and bands have impact on the thermal radiation polarization properties of snow. The detecting angle has high significant impact on the thermal radiation polarization degree of snow. The bands and the interactions of the detecting angle and other two factors significantly affect the thermal radiation polarization degree of snow. The azimuth angle has certain impact on the thermal radiation polarization degree of snow, and its interactions with the bands have no impact on the thermal radiation polarization degree of snow. Therefore, the effects of each single factor and their interactions on the thermal radiation polarization degree of snow should be considered in the research.