Critter passage can to a large extent ensure the safety of living things crossing the road and reduce the traffic mortality of living things arising from crossing the road. Outdoor drainage pipes can eliminate accumulated surface water, alleviate the drainage pressure of urban roads, and reduce the phenomenon of urban stagnant water. At present, there are many studies on the construction methods of drainage pipes, and there are also many studies on critter passage, but there is little research on the organic combination of critter passage and drainage pipes. Taking the drainage pipe as the research object, in accordance with the basic requirements of critter passage, this paper studies the construction methods of ecological drainage pipe with critter passage function, in order to solve the problem of single function of drainage pipe at present. It can provide a reference for related research in the future.