Abstract: Taking the diet exposure assessment models and methods of the European Union, the United States and the related international organizations as reference, this paper mainly compared and analyzed the similarities and differences, advantages and disadvantages of point assessment and probability assessment, and analyzed the key factors of diet exposure assessment model including assessment software, processing factor, database, et al on the basis of review on the evolution and development history of diet exposure assessment model, combined with the present situation of diet exposure assessment in China. Finally, the opinions and suggestions can be used for reference were proposed.

Key words: dietary exposure, estimation model, estimation software, key factor