Abstract: In recent years, due to increasingly severe heavy metal pollution in soils, rivers and oceans, the presence of excessive harmful heavy metals in seafood is widespread in China, which seriously affects the safety of seafood for culinary and medicinal use. Therefore, the removal of harmful heavy metals from seafood is of wide research interest. This article focuses on reviewing two methods to remove harmful heavy metals from seafood, namely purifying the organism when it is alive and removing heavy metals from seafood protein hydrolysate. Moreover, future trends in the development of new methods are discussed.

Key words: seafood, heavy metal, protein hydrolysate, removal