Abstract:A filed experiment was conducted to explore the effects of different Se fertilization rates on rice growth and the accumulation of heavy metals (As, Cr, Cd, Pb) in rice and to disclose the feasibility to reduce the contents of heavy metals in the edible part of rice by Se fertilization. The results showed that selenium fertilization increased rice plant tillering, height and dry matter weight, but no significant differences existed in different Se fertilization treatments (30, 60, 120 kg/hm2). Selenium fertilization had certain stimulation effect on rice yield. Selenium fertilization significantly improved the contents of total selenium, and inorganic and organic selenium in rice, which were increased by 300%, 94% and 400%, respectively, among of which, the proportion of organic selenium increased from 68.6% to 85.2%. Selenium fertilization significantly increased the accumulation of Se and As in rice panicle by 260% and 85%, respectively, and significantly inhibited the accumulation of Cr an Cd by 53% and 45%, respectively. But there was no significant inhibitory effect on Pb (0.05%). So Se fertilization can promote Se be transported to millde rice and bran, and can inhibit As be transferred from the branches to husk and bran. At the same time, selenium fertilization can effectively inhibit the accumulation of Cr, Cd and Pb in milled rice.