In order to adapt the climate changes in Ningxia, i.e., the drying and warming climate, taking Lingwu Long jujuba as material, using infrared radiation eqiupmant to control simulation environment, indices reflecting fruit quality were measured, such as weight and size of individual fruit, vertical and horizontal diameters,fruit setting rate, soluble sugar content and acid content under the interactive treatments of elevated and drough, to illustrate affecting mechanism of climate change to the fruit setting and fruit quality. The results showed that as the increase of temperature and drought stress, fruit coloring proportion, fruit setting rate and fruit yield decreased, while the weight of individual fruit, sugar-acid ratio increased.