Abstract: Based on the characteristics of airport passenger flow, the design of rail transit station connecting airport is proposed to integrate with the airport comprehensive transportation at the macro level, so as to promote the smooth operation of the overall airport transportation system. While at the micro level, good transfer space and facilities should be provided to meet the passenger requirements for convenience, directness and priority needs, avoiding congestion at the same time. Taking the design of Xi′an Airport Intercity Railway West Station as an example, the station location that will effectively connect rail transit station and airport public transport system, the design of station platform, building escalator, pedestrian passage, gate and other facilities are studied. Finally, Legion software is used for the pedestrian simulation analysis of Xi′an Airport West Station, and the rationality of the station design is verified.