On May 22, 2021, China's first Mars Rover “Zhurong” began its exploration on the Utopian Plain of Martian northern hemisphere. It carries a Mars Rover Penetrating Radar (RoPeR) which contains a high- and a low-frequency channels. The high-frequency channel is equipped with a full polarimetric antenna array with a central frequency of 1.3 GHz, whose scientific objective is to find potential water ice and/or dry ice in the subsurface of Mars. In this study, laboratory experiments are carried out to validate the feasibility of RoPeR to detect and discriminate ices. Results preliminarily reveal that the reflection signals from the bottom of the dry ice and water ice present different polarimetric scattering mechanism based on H-a polarization decomposition.