This thesis concerns some problems of the low embryo rate, the high broken rice rate and the bad taste in embryo rice industrial production, by using sixty collected japonica rice varieties of 2011 from Heilongjiang Province, Jilin Province and Liaoning Province as the material, for embryo rice processing test by roller rice milling machine, screening of higher embryo rate varieties, determinaton sensory scores and integrated taste score of cooked rice, and analyzed the milling quality such as brown rice rate, milled white rate and appearance quality such as brown rice whiteness, milled rice whiteness, broken rice rate and imperfect rate on samples. The results showed that there are six higher embryo rate and sensory scores varieties in sixty samples, which are Longdao 10, Mudanjiang 27, Mudanjiang 28, Mudanjiang 30, Jijing 95 and Songjing 9; the embryo rate is very significant positive relevant to milled white rate and very significant negative relevant to milled rice whiteness, significant negative relevant to brown rice rate and significant positive relevant to imperfect rate.