Leisure food, in fact, is also a category of fast moving consumer goods, is the food that people eat at leisure and rest. A better explanation is fun food. The main categories are: dried fruit, puffed food, candy, meat food and so on. With the improvement of living standards, leisure food has always been the favorite food of the vast masses of people. Into the supermarket, you will see potato chips, French fries, shrimp strips, snow cakes, preserved fruit, tamarind cake, prune, peanuts, pine nuts, almonds, pistachios, fish fillet, dried meat, spiced fried meat and other leisure food. Snack food is gradually becoming a daily essential consumer goods. With the development of economy and the improvement of consumption level, consumers' demand for the quantity and quality of snack food continues to grow.