The work aims to explore how food package affects consumer's perception and preferences. Packaging elements were divided into size, shape, material, text, images, etc. Related researches in fields of marketing, nutrition, psychology and food science were concluded to explore how different elements of food package affected consumers’ food consumption and study its internal psychological mechanism respectively. Food package always influenced consumers’ judgment bias and eventually caused excessive consumption. In conclusion, this research will be helpful to design more reasonable food package, reduce food intake extravagancy and lead to healthier consumption of packaged food.