The Beijing News reported on November 5 that the Capital Airport will use blockchain technology to enhance the passenger travel experience. Passengers complete identity authentication at home by mobile phone. After arriving at the Capital Airport, they do not need to show any identity documents. “Swipe face” can complete all the flight links. As of November 3, 498 flights in China, nearly 60,000 passengers experienced “ Brush your face" boarding. The Capital Airport will also plan to introduce differentiated security inspections and use blockchain technology to enable passengers to have more timely and comprehensive flight information.