Abstract: The application of food emulsifiers has been increased year by year,as well as its daily intake by people.Food emulsifiers can improve the permeability of intestinal epithelia,and induce autoimmune diseases.Meanwhile,they can increase the bioavailability of contaminats in food.In order to control their potential hazards being brought to people,attentions should be paid to the effects of food emulsifiers on contaminats 'internal exposure level,preventing food safety risks being underestimated.