Maize (Zea mays L.) is the third most important cereal crop after wheat and rice, besides, it's important and necessary for global food security. Maize is considered a C₄ plant and is sensitive to salinity. Two maize hybrids (SC-168 and TWC-352) were evaluated morphologically and biochemically under salinity stress using levels of NaCl (0, 50, 100, 150, 200, and 250 mM) at the germination stage. The results indicated that the percentage of germination, growth characteristics, pigments in both hybrids significantly decreased with increasing of NaCl concentrations. In addition, proline increased with increasing salinity levels and then decreased at the highest levels of NaCl in both hybrids. Moreover, salinity with high levels of NaCl led to decrease activity in CAT, POX, and PPO enzymes. Finally, under salinity stress, SC-168 had greater values in germination %, growth characteristics, photosynthetic pigments, proline content, antioxidant activity compared to TWC-352. As a result, it's possible that SC-168 has a higher salt tolerance than TWC-352.