Selenium is an essential nutrient for the biological function of animals and plants，and selenium-rich fertilizers are widely used to promote the accumulation of selenium in rice.In response to the low rice yield and quality caused by the lack of selenium，a field experiment was conducted to study the effects of selenium-enriched yeast and broken-wall selenium-enriched yeast on growth characters，yield，selenium content and rice quality in cold region.Selenium-enriched yeast and broken-wall selenium-enriched yeast materials were sprayed on the leaves of rice at flowering and filling stages at 4 levels:the selenium-enriched yeast was 375 g/hm²(S1)，750 g/hm²(S2)，1125 g/hm²(S3) and 1500 g/hm²(S4)，respectively，the broken-wall selenium-enriched yeast was 375 g/hm²(B1)，750 g/hm²(B2)，1125 g/hm²(B3)，1500 g/hm²(B4)，and there was a control group(CK).The results showed that the plant height and effective panicle number of rice treated at different levels had an increasing trend compared with CK group，but there was no significant difference(P>0.05).Compared with CK，the 1000-grain weight and yield of B4 group were significantly different(P<0.05)，and the yield increased significantly to 8172.0 kg/hm².The selenium content in the leaves of the broken-wall se-enriched yeast group was significantly increased，and the selenium content B12，the content of selenium reached 0.107 mg/kg，which was significantly different from other treatments(P<0.01).Spraying broken-wall selenium-enriched yeast 1500 g/hm² improved rice chalkiness rate，increased brown rice rate，and significantly affected protein and amylose content.To sum up，application of selenium-enriched yeast and broken-wall selenium-enriched yeast can promote the absorption and accumulation of exogenous selenium in rice，the effect of applying 1500 g/hm² broken-wall selenium-enriched yeast on rice growth，yield increased and selenium accumulation was better.