Soil salinity is one of the important abiotic stress that adversly affect plant productivity and quality. Salinity stress can affect all aspects a plant development and metabolism such as seed germination, growth, photosynthesis, gene expression and metabolite accumulation. High levels of sodium have negative effect on the activity of enzymes and photosynthesis that lead to production of various reactive oxygen species. Almond trees ( Prunus amygdalus ) have bean grown commercially in Iran for many years. Almond is Keywords : Almond, Sodium chloride, Hydrogen sulfide, Antioxidant enzymes, Proline.