Salinity is a major issue restricting sustainable soybean production in arid and semi-arid regions of the world. Zinc is an important micronutrient which may improve plant growth and development. Therefore, a research was undertaken to clarify the role of zinc on growth of soybean under salt stress. The experiment was conducted using six levels (0, 50, 100, 150, 200 and 250 mM) of NaCl and the plant was also treated with zinc under different salinity levels. This experiment was arranged in a completely randomized design with three replications. Maximum salt stress (250 mM NaCl) caused reduction in plant height by 64.35%, 58.82%, 56.90% and 57.37%, leaf number by 72.68%, 65.31%, 57.57% and 53.41% and leaf area by 84.31%, 76.67%, 70.61%, and 67.96% at 15, 30, 45 and 60 days after treatment, respectively. Whereas, application of Zn to salt-stressed plants elevated plant height by 82.38%, 49.24%, 49.93%, and 43.51%, leaf number by 41.02%, 16.48%, 2.61%, and 11.28% and leaf area by 41.85%, 40.09%, 18.47% and 17.67% at 15, 30, 45 and 60 days after treatment, respectively. These results indicate that zinc plays an important role on growth of salt-stressed soybean. Zn application compensated the deleterious effects of Na<sup>+</sup> and Cl<sup>-</sup> ions and led to greater plant growth.