The applications and safety of several common nanomaterials used in food packaging were reviewed in this paper. The applications of nanomaterials including Ag nanomaterials, TiO2 nanomaterials, SiO2 nanomaterials, ZnO nanomaterials and montmorillonite used for food packaging were illuminated. Nanomaterials can effectively improve the properties of packaging materials, maintain the quality and flavor of food, prevent microbial growth, and have significant meaning and bright prospects.