Business license, food and drug circulation license, catering service license, recruit employees who meet the hygiene requirements, and build a production place that meets the requirements of food and drug supervision. If you run a school, it's almost enough. If you deliver food, you need to have a food delivery truck, all kinds of sealed packaging boxes, incubators, and production date coding ... Many of them are very complicated. Go to the Food and Drug Administration and ask clearly. Of course, fire fighting is also indispensable ... involving many departments. This needs to be done for a long time, and in the short term, it is disproportionate to invest and point out.