Abstract: The aim of the experiment is providing a refrence for reasonable irrigation schedule development of greenhouse crops. Daily evapotranspiration of cherry tomato with mulch-drip irrigation was determined using large-scale weighting lysimeter in Beijing, and the solar greenhouse meteorological conditions and pan-evaporation were analyzed. Water consumption intensity, crop coefficient, and pan evaporation coefficient were determined for each growing stage. The results showed that the water consumption intensity, crop coefficient and pan evaporation coefficient for growing stages, i.e., in seedling stage were 0.22 mm/d, 0.09, 0.10, in flowering-setting stage were 1.65 mm/d, 0.48, 0.65; in fruiting stage were 2.56 mm/d, 1.56, 1.76, and later fruiting stage were 1.90 mm/d, 1.12, 2.06, respectively. There are significant relationship among the accumulated evapotranspiration, accumulated pan evaporation, and accumulated temperature, which provide a certain basis for the reasonable irrigation schedule development of greenhouse crops.