An incubation experiment including four rice varieties, three temperatures, four concentration of Se,two seeding methods, 78 treatments in total was conducted to study the effects of seed-soaking with sodium selenitefollowed by cold hardening on enhancing emergence rate of direct-seeded rice. Results showed that the wet and dryseeding emergence rates of Daohuaxiang 2, Jixidao 1 and Longjing 31 seeds increased significantly by treated with 0.06 mg·L^-1Se. So did Kongyu 131 seeds treated with 0.08 mg·L^-1Se. The emergence rate of Daohuaxiang 2 seedstreated with 0.06 mg·L^-1Se followed by 2℃ cold hardening was both increased by 25 percent and 12.5 percent（P＜0.01） than-2℃ cold hardening and 25℃ on dry seeding. The emergence rate of Jixidao 1 seeds treated with 0.06mg·L^-1Se followed by-2℃ and 2℃ cold hardening increased by 33.3 percent（P＜0.01） and 25.0 percent（P＜0.05）than 25℃ on dry seeding, respectively. The effects of cold hardening on wet seeding emergence rate was not signifi-cant.