Ordering by scanning code in a restaurant means that customers scan the QR code on the dining table or menu with their mobile phones or other code scanning tools in the restaurant, and order the food and drinks they need through the mobile phone application. In this way, customers can see the available dishes on the menu, choose their favorite foods and drinks, and then join the shopping cart to complete the payment. Finally, the waiter will send the food to the customer's table.

Compared with the traditional manual ordering method, code scanning can reduce the communication between customers and waiters, reduce the work pressure of waiters, and be safer, more convenient and faster. At the same time, scanning code to order food can also provide more information for restaurants, such as customers' preferences and consumption habits, which can help restaurants better market and recommend dishes.

Now there are many softwares that scan code and click, such as transmitting treasure, meituan, hungry and so on. Generally, in addition to the function of scanning code to order food, there are also functions such as member management, statistical marketing activities and multi-social platform marketing.