Pedestrian Bridges are common in urban areas of Chongqing and are one of the main street crossings in the city. The pedestrian bridge is beautiful in shape and convenient in construction. It can not only solve the problem of separating people and vehicles, but also increase the beauty of the city. In recent years, due to the increasingly prominent problem of aging population, it is particularly important to add escalators to existing pedestrian Bridges, which is not only the need of urban development, but also a livelihood project. This paper focuses on the design points of adding escalators to existing pedestrian Bridges, and the corresponding technical analysis.