The rapid development of the current society is beyond imagination. For a long time, our work was still manual. Gradually, with some semi-automated equipment, people realized their convenience after using them and greatly improved productivity. This also promoted the invention of automation, and the self-service check-in machine is a representative of self-service products. Picture: Self-service check-in machine The self-service check-in machine of the hotel plays an important role in the check-in procedure for passengers. The first is to reduce the use of manpower, which saves a lot of costs; second, in terms of user experience, for it, the most needed is electricity. Only electricity can provide passengers with 24-hour service. In addition, passengers don’t need it. Worried about how complicated its operation is. It uses the most popular touch screen method, and has a good connection with our usual smart phone operations, so the operation is quite simple. Passengers are most concerned about the simplification and humanization of the procedures when checking in the hotel, and the self-service check-in machine has done both of these aspects. The simplified operation and improved service are suitable for use in the hotel. Nevertheless.