This thesis is aimed at the technique of film hole irrigation which need solved immediately in Ningxia Diversion Yellow River Irrigation Area , and the paper depends on water-saving irrigation experiment field at Ma Lianqu township of Litong District of Wu Zhong City where belongs to Ningxia Diversion Yellow River Irrigation Area, adopts regression rotators experimental design, orthogonal test design and infiltration experimental, takes the technique of water-saving irrigation, computer and mathematical sta...