Abstract: [Objective] To compare the differences of drought-resistant ability in different origin wild jujubes in order to provide the theoretical basis for filtrating admirable rootstock and breeding new varieties of jujube.[Method]Using method of field persistent drought resistance in 15 kinds of different origin wild jujubes, through the test of 1 year old leaf physiological indexes, and then converted into the index of drought resistance, and then further converted into membership function value, finally the index membership average value was taken as the comprehensive evaluation standards of the drought resistance of wild jujube.[Result]It was found that 6.7 percent of the 15 kinds of different origin wild jujube belonged to the stronger drought resistance, 53.3 percent belonged to secondary drought resistance, 33.3 percent belonged to the lower drought resistance.In the osmotic regulators and physiological indexes of jujube antioxidant enzyme, proline and SOD in any conditions could be used to evaluate drought resistance of plants or as identification index.[Conclusion]The wild jujube in Yi County of Hebei Province (HB1) has quite strong drought resistance, followed by those in Qingjian and Mizhi County in Shanxi Province.