The recent development of a new type of Hg-based infrared material-HgCdSe is introduced，and the up-to-date research progress of its substrates including ZnTe/Si （211） and GaSb （211） is presented. Compared with HgCdTe，HgCdSe has higher performance，and its growth is easier，meanwhile it has mature substrate. It is considered that HgCdSe has the potential to be a powerful infrared material for the next generation detectors.