An experiment was conducted under unheated plastic house conditions at Kaha experimental station, Kaliobia Governate, in winter season of 2004 to study the effect of grafting of two melon cultivars, namely Kahera 6 and Galia F1, on some rootstocks, namely Cucurbita ficifolia, hybrid No.6, Butternut squash and Shammam Eljordon on volatile components of fruits was studied. Fruit volatile components of cv. Kahera 6 consisted of 34.6% alcohols, 32.5% esters, 20.9% hydrocarbons and 10.5% aldehydes, while those of Galia F1Consisted of 24.5% alcohols,5% esters, 36.9% hydrocarbons, 15.9% acids, 9%nitrogenous.     Grafting on the different rootstocks led to greet changes in the percentages of different volatile components in addition to containing new compounds, which were passed from the rootstocks or created in the scion fruits. The contents of grafted fruits depended on the interaction between both of scion and rootstock type.  So, the present study indicated that grafting affects aroma of melon fruits.