In arid and semi-arid regionslikeIran, soil salinityisone of themajorfactors that reducescrop production. Cucumberisoneof the most importantgreenhouseproducts in Iran.Thedevelopment ofnew methodslike grafting to avoidsalinityandrootdiseases, and therebyincreasing the yieldandquality,canplay an important rolein increasing efficiencyingreenhouse production. The aim of this research was to evaluate the effect of salinityon somegrowth andnutritioncharacteristicsof cucumber graftedondifferent rootstocks and the resistance of every rootstocktosalinity. This research was done in the greenhouse of the School ofAgricultural at theIsfahan University of Technology, in 2014 in form of3*8 factorial experimentin format of Completely randomized designwith three replications. This experiment was performed in 3 levels of salinity (0, 30, 60 Mm NaCl). For grafting, rootstocks of Khoreshi( Cucurbitapepo), Tanbal ( Cucurbitamaxima ), mass of Astane Ashrafi, Ghalyani ( Lagenariasiceraria), Karela ( Momoridacharantia) and mass of BoomiIsfahan were used andDAVOSII cucumber as sicion. Also In this experiment, grafted cucumber on rootstock of DAVOSII cucumber and also Non-grafted Cucumberas a control were used. Different connective compoundsin same conditions,showed different degreesgrafting success. Diameter of rootstock and sicion in rootstock of TanbalComparedwithNon-graft Cucumber showeda significant increase. Leaf area in rootstocks of Boomi Esfahan cucumber and Tanbalin salinity of 30Mm Compared with the control,showed a significant increase. Stem Length in rootstock of Tanbal in salinity of 30Mm, Compared withnon-graft cucumber, showed a significant increase. In this experiment,the rootstock ofBoomiIsfahan,showed The highest number ofmale and female flowers. The rootstocks ofKhoreshi and Tanbalshowed the minimumemergence time for the firstfemale flowers. Node No.of the emergence of the firstfemale flower and root area and volume in grafted cucumber on rootstock of Tanbalcompared tocontrol showed a significant increase.In this research the useofCucurbit rootstocks was the cause of increase in thequalityandcharacteristics of thefruitcompared to the control.Leaf water potential in the rootstock BoomiIsfahan cucumber inall salinity levels, Compared to the control, showed a significant increase and root water potential in the Astane Ashrafi rootstock in salinity 30 and 60Mm was higherthan control. Photosynthesis in grafted cucumber on rootstock of Khoreshi in salinity 60Mm comparedto non-graft cucumber and other rootstocks,showeda significant increase. In this experiment, almost in all rootstocks, Mesophyll Conductance decreasedwith increasing salinity. The concentration ofNitrogen in grafted cucumber on rootstocks of theTanbal, Ghalyani, Astane Ashrafi and Kareladecreasedwith increasing salinity levels. The concentration ofPotassium in grafted cucumber on rootstocks of theTanbal, Ghalyani and Kareladecreasedwithincreasing salinity.The concentration ofphosphorus in grafted cucumber on rootstocks of the DAVOSII cucumber and Astane Ashrafi increased with increas in salinity. Alsowith increasing levels ofsalinity, the Total Solid Solution (TSS) increased at the rootstocksof DAVOSII cucumber and Khoreshi. The least amount ofion leakagewas observed at salinity of 60Mm in cucumber grafted on Tanbalrootstock. At the end, it can be concluded thatamongvarious rootstockusedfor grafting, the BoomiIsfahan cucumber and Tanbal rootstocks, showed excelin terms ofsalinity. Keywords : Cucumber, Grafting, Scion, Different Rootstocks, Salinity