This type of business district is defined as an office building business district, characterized by: first, customer spending power, mainly based on their company meal allowance decision, many people are not willing to spend more money to eat, so it is important to investigate, second, customers are relatively picky, to do a good job of service and property relations, and then there is more takeaway. Customers demand high speed of food delivery, because the dining time is really short. Office building restaurants need to regularly change the menu, because customers are relatively fixed, followed by the best set menu with, to give customers a sense of affordability. Restaurant seating to try to set up more, otherwise there is no place to do more people, there is also the customer as soon as possible to familiarize themselves with who is the leader, some leaders care about the first to give him a meal, the other need to consult the Q I it