The location of the Liyang Lake Pedestrian Steel Truss Arch Bridge in Jinan has complex topographical conditions, high requirements for ecological and environmental protection, and limited construction site conditions. The bridge type design adopts the steel truss arch bridge scheme after scheme comparison and selection. The horizontal thrust of the arch foot is conducive to the stability of the existing road slope; the construction adopts large cranes to first hoist the steel truss arch lower chord arch ring as a whole, and then hoist the upper arch members and bridge deck system. The construction method solves the problem of restricted construction site conditions; by installing diagonal braces to replace the mountain side abutment, the damage to the exposed rock masses of the mountain slope is avoided. Some design and construction measures of steel truss arch bridges under specific conditions can provide some reference for the design and construction of similar bridges.