Melon is one of the species in Cucurbitaceae which has intense transformation researches for two decades. We review here the various approaches reported in the literature. A. tumefaciens was used mainly in melon transformation studies. Few studies were reported by using particule bombardment, A. rhizogenes and Zucchini yellow mosaic potyvirus-vector. In last years, new methods named ovary injection, pollen tube pathway and new genes called marker-free and vector-free genes were used in melon transformation studies.