Disclosed herein are a parking lot irrigation/drainage construction method and an irrigation/drainage system. The irrigation/drainage system comprises a parking lot having a construction space, as well as an irrigation/drainage device provided in the construction space. The irrigation/drainage device comprises a plurality of water-permeable mesh pipes, the bottoms of which having osmotic holes and an inlet pipe and a drain pipe connected with the water-permeable mesh pipes. The parking lot further comprises a water-permeable base layer covering the water-permeable mesh pipes, and a planting layer located above the water-permeable base layer and used for planting plants and planning parking spaces or driveways. The above-mentioned construction method and irrigation/drainage system can not only quickly remove seeper, but also allow to irrigate plants under the condition that water and nutrients will not seep out of the ground surface.一種停車場之灌溉排水施工法及灌溉排水系統,該灌溉排水系統包含一個具有一個施工空間的停車場,以及一個設在該施工空間內的灌溉排水裝置,該灌溉排水裝置包括數個底部具有滲透孔之滲水網管,以及與該等滲水網管連接的一進水管、一排水管,所述停車場還包括一個覆蓋該等滲透網管的透水基層,以及一個位在該透水基層上方並可栽種植物以及規劃停車位或者車道的植生層。前述施工法及灌溉排水系統不但可以快速的排除積水,也可以在水分及養分不會滲出地表的情況下灌溉植物。1‧‧‧停車場11‧‧‧原土層111‧‧‧路面112‧‧‧施工空間113‧‧‧回填室114‧‧‧第一溝渠12‧‧‧底舖層13‧‧‧透水基層131‧‧‧第一級配段132‧‧‧第二級配段133‧‧‧根生長段14‧‧‧植生層141‧‧‧舖設物件142‧‧‧植栽空間21‧‧‧滲水網管213‧‧‧通道
