During the 13th Five Year Plan period, it is committed to building an international comprehensive transportation hub system, pointing out that 30 airports will be built, 44 new airports will be built, and 139 airports will be rebuilt and expanded. According to this year's 14 five year plan and the long-term goal for 2035, the airport construction project will be further promoted. It is estimated that the domestic and international flight passenger turnover in China will reach 4.08 trillion person kilometers in 2035, accounting for 21% of the global total. Nearly two-thirds of the aircraft stay in the far seat, and the ferry becomes the main transport body. This design introduces the hydraulic cylinder power system to redesign the ferry car, which simplifies the boarding process and solves the following problems: 1. It is very inconvenient for the elderly, pregnant women, the disabled and the people with infants and young children to transfer to the boarding ladder; 2, Passengers are inevitably exposed to rain, snow and high temperature when they transfer to the boarding ladder. Passengers are not allowed to take umbrellas easy