Abstract: To explore the influence law of cyclic aeration underground drip irrigation on soil moisture and water consumption characteristics of tomato in greenhouse, the effects of drip irrigation depth, ae-ration level and irrigation amount on soil water content, water consumption, yield and water use efficiency of greenhouse tomato were studied by orthogonal test. The results show that the water consumption of tomato increases first and then decreases in the whole growth period. The water consumption of tomato treated with aeration is higher than the one without aeration treatment. Compared with non aeration treatment, aeration drip irrigation treatment increases the tomato yield by 10%. Drip belt depth 15 cm, dissolved oxygen value 30 mg/L, K_P=0.75 irrigation volume can promote the yield and water use efficiency reaching the maximum, which are 64 951.3 kg/hm~2 and 23.26 kg/（hm~2·mm）, respectively. The effect of aeration treatment on tomato yield and water use efficiency is statistically significant（P＜0.05）. Aeration has a certain effect on soil moisture content, and benefit to tomato water absorption. Under the interaction, the interaction between the depth of drip irrigation belt and the amount of irrigation has a statistically significant effect on the yield of tomato（P＜0.05）, the interaction between the depth of drip irrigation belt and the amount of aeration has a statistically significant effect on the yield of tomato（P＜0.01）. The interaction between irrigation amount and depth of drip irrigation zone, irrigation amount and aeration level have significant effects on tomato water use efficiency（P＜0.01）.