Plays an important role in a good drainage system on the civil construction periodand the normal use and the service life of structures. ***187**6988**5624*** on the base of overhead floor. Drainage plate and porous pipes form an effective drainage system, porous drainage plate and geotextile cylindrical also composed a drainage system, drainage system board to form a with seepage, water storage and drainage function is divided into sheet & two series wherein the web was divided into "hot" and "lap" and "self" of the three types, the modelling using a special process will beclosed cylindrical shell plastic sheet extruding convex, concave convex shellmembrane formation, continuous, with three dimensional space and some supportheight, edge processing production hot stick on butyl rubber strip, the top of the shell covering geotextile filtering layer, used for seepage, drainage, drainage and water storage products. Drainage plate re build a layer of single wall or with steel mesh cement to protect the drainage board.