The problem with Shenzhen Le Yi Hotel was booked in advance, but when they arrived, they said there was no room. An unmanned smart hotel is an unattended smart hotel. There is no manual service front desk and no room card. Guests can book, choose rooms and pay online. When they arrive at the store, they can compare their faces with their ID cards. After successful authentication, the guest can unlock the room by brushing his face, ID card or a letter. Irregular individual guests can check in through the front desk self-service machine, and guests can check out with one click. Unmanned smart hotel is a high-tech hotel with no artificial front desk, simplified check-in and check-out process, shadow service, high efficiency and intelligence.