Perforated pipe micro irrigation is the processing water outlet holes in the collapsible plastic pipe, water saving technology of dropper or micro jet, has low investment, no blockage, low energy consumption, convenient management, can drop to spray, strong adaptability characteristics, various species of water saving irrigation for flat terrain. According to the application methods are divided into 2 kinds, one is under film dropper (double), second kinds of porous pipe sprinkling (3 a 7 Kong Dai).