This study was conducted in order to clarify the characteristics of soil evaporation and water dissipation in jujube trees and intercropping trees. On the basis of field experiments, we examined the changes in soil evaporation, meteorological factors, soil factors, and boundary effect by means of micro-lysimeter monitoring of the soil evaporation of jujube trees and intercropping. The following results were obtained. Soil evaporation differed at the different growth stages of jujube trees. There were significant differences in soil evaporation and transpiration between single and intercropping trees, and it was generally higher in monoculture than with intercropping. Investigation of external influencing factors indicated that the soil evaporation of jujube trees showed a good functional relationship with solar radiation and soil water content. Although the daily average temperature was related to the soil evaporation of single cropping trees, the correlation with intercropping was poor. When the boundary effect of intercropping jujube tree was analyzed, it was found that intercropping cotton significantly affected soil evaporation between intercropped jujube trees, and the leaf area index of cotton showed a good 2-fold relationship with soil evaporation. To some extent, this study reveals the advantages of the intercropping model, which provides a theoretical basis for reducing inefficient water consumption and improving water-use efficiency.