1. Food safety problem: The environment of the construction site is rather complicated, and the sanitary conditions are not as good as those of regular dining places. If the box lunch is allowed to be sold, there will be food safety problems, such as substandard food hygiene and expired food.

2. Safety hazards: Selling box lunch on the construction site may cause safety hazards, such as fire and food poisoning. If the booth selling box lunch is not set properly, it will affect the normal work and life of workers.