Taking the design and management of the elevated passenger entrance passage of Nanchang West High-Speed Railway Station as an example, this paper compares and analyzes the traffic efficiency of three dif- ferent passageways of the present elevated passenger passage by collecting the data of the flow, arrival and pass- ing time of vehicles etc. Based on present problems analysis, the paper proposes the idea of improving the de- sign, and evaluates the effectiveness of the improved scheme using the queuing model. The paper puts forward that the improved scheme with the parking space set explicitly in the parking lanes, the driving lanes not affect- ed by parking，and the pedestrian safe passage considered, has better operating efficiency than the situation of simply dividing lanes on elevated entrance platform.