Toys or juvenile products pose potential risks to childrens health when being played,as certain elements could migrate to human bodies.The migration levels have been restricted by regulations in either China or many other countries.The exposure way and migration model of certain elements have been reviewed in this paper.The key technical parameters for three simulated migration experiments including sweat migration,saliva migration and gastric juice migration have been respectively introduced in detail and in consideration of physiological characteristics of children.Meanwhile,the differences of migration models between China and other countries have been summarized,and an outlook is made on their tendency of future development,which could provide a reference for the development of general rules for migration experiment of certain elements in toys and juvenile products.