Abstract: The paper aims to improve the rain-collected water use efficiency on dry land wheat. Taking deep anti-blocking infiltration irrigation system and dry land wheat ‘Yunhan 618’ as test materials, the authors studied the effects of 5 limited water supplement irrigation on yield and yield component, water use efficiency and economic benefit of winter wheat in 2012-2017. The results showed that: water supplement irrigation increased the yield by 47.5%-478.0%, spikes, kernels/spike and 1000-grain weight significantly increased compared with the control, respectively; the water consumption in infiltration irrigation were greater than that of the control, the water use efficiency increased by 2.6-8.1 kg/(hm2?mm) compared with control and by 15.0%-245.5%, and the irrigation efficiency were 5.7-9.4 kg/(hm2?mm) in different precipitation years; the increase range of water use efficiency and irrigation efficiency were the greatest in drought years. The pure income of infiltration irrigation was 6849 yuan/hm2, and 117.4% higher than that of control based on 5-year average yield and 2.36 yuan/kg of wheat price. Deep anti-blocking infiltration irrigation system had remarkable effects on water-saving and yield increase and economic benefit.