Abstract: The construction of new energy has shifted from plain to mountainous area, and it is not uncommon for highway engineering to cross existing pipelines. The comparative design of multi-scheme of water-light-complementary agricultural photovoltaic entrance road in Mamaya, starting from the engineering practice, is presented with different solutions of roads, bridges and culverts respectively, and detailed discussion is made from design, construction, safety, economy and other aspects, and practical solutions are given.