Abstract:Selenium is one of the essential trace elements for the human body，and selenium deficiency can lead to Kachin-Beck disease，Keshan disease，weakened immune function and other health problems. At present，there is a widespread phenomenon of selenium deficiency among the Chinese population.The consumption of selenium-rich agricultural products is recognized as the safest，most effective and most scientific method to supplement selenium in the human body. However，many studies have unveiled a mutual interaction between selenium and cadmium in the production process of selenium-rich agricultural products. Moreover，cadmium content is prone to exceed the standard，posing significant food safety risks and considerably restricting the development of selenium-rich agriculture. Therefore，this article，in combination with recent research findings，elucidates the detection methods of cadmium and selenium in selenium-rich agricultural products，the interaction between selenium and cadmium accumulation in selenium-rich agricultural products，the associated mechanism of selenium-cadmium interaction and the inhibition mechanism of selenium on cadmium heavy metal. This review provided a reference for further study on the mutual interaction between selenium and cadmium and established a scientific basis for investigating techniques to enrich selenium and reduce cadmium in agricultural products.