This study aims to reduce the harmful effects of soil salinity as an important environmental factor during the vegetative growth stage of durum wheat plants, Due to its economic importance and to ensure sustainable wheat production under climate change conditions and to support food security, the plant hormone salicylic acid was used because of its many physiological roles in plant growth and development ,The experiment was designed according to a completely randomized design and conducted under semi-field conditions, Durum wheat seeds were planted and irrigated with normal water to ensure germination, Afterwards, irrigation was carried out with a saline solution to create salt stress conditions, The plants were then divided into two groups: one group was treated with salicylic acid sprayed on the vegetative parts. Samples were collected and measurements were taken before the emergence of spikes. The recorded data included: length of the shoot system and root system, number of leaves, number of tillers per plant, fresh and dry weight. Statistical analysis of the data showed significant differences (P < 0.001). The results indicated that all studied plant traits showed a clear improvement when treated with foliar spraying of salicylic acid under salt stress conditions, compared with plants exposed only to salinity. This suggests that salicylic acid acts as a plant growth regulator that enhances the plant’s ability to tolerate stress through multiple mechanisms, Its role is confirmed as one of the possible solutions to mitigate the effects of salt stress. The use of foliar application of salicylic acid represents an effective strategy to improve the performance of durum wheat under saline conditions. However, further research is required to determine the optimal concentrations and application periods in different environments............ Keywords:..........Salt stress, salicylic acid, durum wheat, vegetative growth stag