本文提出了一种低水头滴灌系统 ,对该系统的关键设备———首部控制塔、管材和灌水器进行了选型和研制。该系统以水的重力为动力 ,将灌溉水通过田间管网和灌水器直接输送到作物的根区。同时对该系统特有的小流量线源土壤水分入渗进行了试验研究 ,总结出了湿润锋位置与灌溉时间的关系 ,为系统的规划设计提供了依据。提出了低水头滴灌系统的几种典型应用场合的设计方案 ,并与常规滴灌系统在经济性上进行了对比分析 This paper presents a low-head drip irrigation system, the key equipment of the system --- the first control tower, pipe and emitter were selected and developed. The system uses the gravity of water as a driving force and delivers irrigation water directly to the crop’s root zone through field pipe networks and emitters. At the same time, the experimental study on the soil water infiltration of the low-flowline source, which is peculiar to this system, is summarized. The relationship between the wetting front position and irrigation time is summarized, which provides the basis for the system planning and design. The design scheme of several typical applications of low head drip irrigation system was proposed and compared with the conventional drip irrigation system in terms of economy