Objective To explore the effects of exogenous salicylic acid on the physiological traits of kiwifruit rootstocks under drought stress and provide a theoretical basis for the application of drought-resistant regulatory substances.Method A pot experiment was carried out using "Bruno" kiwifruit as the material， after pretreatment with exogenous salicylic acid， 25% polyethylene glycol 6000 （ PEG-6000 ） solution was used to simulate drought stress. The changes in the physiological indexes of the leaves of "Bruno" kiwifruit were measured at different times after drought stress.Result Under the treatments with 1， 2 and 4 mmol/L salicylic acid solutions， the increase ranges of the mass fractions of malondialdehyde （MDA） and hydrogen peroxide （H₂O₂） in the kiwifruit leaves under drought stress were significantly reduced， while the increase ranges of the mass fraction of proline （Pro）， the activities of superoxide dismutase （SOD） and catalase （CAT） were significantly increased. Among them， the treatment with 2 mmol/L salicylic acid solution had the most obvious drought-resistant effect.Conclusion The exogenous salicylic acid treatment reduced the degree of membrane lipid peroxidation， enhanced the accumulation of osmoregulatory substances and increased the activities of antioxidant enzymes， thus improving the drought resistance of kiwifruit plants.