Despite being one of the reasons of production decline, salinity is still a tool to improve production quality in some hybrids. this research was conducted at the Faculty of Agriculture, University of Damascus during 2012 season. A salt stress was applied on two tomato hybrids, Bonaparte and Marmara by increasing the value of the electrical conductivity of irrigating water from 4 to 13 ds / m, at the stage of the third true leaf to the end of growth of the two tomato plants. Results indicated that salt stress led to a reduction in the fruit weight of both hybrids but it helped in improving some chemical and physical characteristics relating to fruit quality, such as increasing the fruit content of soluble solids in both hybrids. Salt stress did not affect the lycopene content of fruits in Bonapart, but it was increased by 2 folds inMarmara. Some fruit color indices (a* and b*) were greater in Bonaparte while L* indice was higher in Marmara. However, the color indices of fruits were not affected by salinity in both hybrids studied.