通过增加饲料中亚硒酸钠的含量，研究了硒对氯化汞在稀有鲫体内积累动力学的影响，探讨了硒对汞富集的影响机制，并给出了两种硒浓度下汞的积累方程。结果表明，饲料中０．２ｍｇ／ｋｇ的硒对鱼体汞富集无明显影响，２．０ｍｇ／ｋｇ的硒使鱼体汞富集增加。并且高硒饲料降低了鱼对汞的排除常数，使鱼体总汞的稳态含量增大。 By increasing the content of sodium selenite in feed, the effect of selenium on the kinetics of accumulation of mercuric chloride in rare crucian carp was studied, and the mechanism of the effect of selenium on the enrichment of mercury was discussed. The effects of selenium The accumulation equation. The results showed that 0.2 mg / kg of selenium had no significant effect on the Hg enrichment of fish, while 2.0 mg / kg of Se increased the Hg enrichment of fish. And high-selenium feed reduces the fish’s mercury removal constant, so that the steady-state content of total mercury in fish increased.