From the reports of major news media and online media, it is not difficult to find that people's use of self-service equipment is constantly increasing, and their intervention also makes our lives more convenient. The effect produced affects people's lives, saving people a lot of time and energy. This article focuses on introducing the self check-in machine for everyone. Picture: Self-service check-in machine The self-service check-in machine is a kind of self-service equipment used in the hotel. The purpose of use is to replace manual check-in, check-out, and checkout for passengers. Now as time goes by, its use really allows the hotel to reduce the use of manpower, thus saving part of the funds for using manpower data. In addition, it has the biggest advantage. I have to mention that it can provide passengers with 24-hour service, which cannot be done manually; coupled with simple operation and stylish appearance, it is perfect for use in hotels. The self-check-in machine has increased the quality of the hotel’s services. Passengers who have used it not only praise its functions, but also save them a little travel time.