The lunch cost of the 30,000 lunch class is 30,000 yuan, and the size of the lunch class is 20-40 people. When there is only lunch service, the preliminary handling fee is about 20 thousand, including lunch and lunch break classes. With the progress of China society, the acceleration of people's life rhythm, the gradual change of social life habits, and the increase of left-behind or floating children in urban and rural areas.