Sweet melon, Cucumis melo, L., is one of the most important economic species of the family Cucurbitaceae. Among the different parts of a melon plant, fruits have the highest diversity in size, form, external ornamentation, and internal and external. Fruits as short as 4 cm long (C. melo, L. var agrestis) and long as 200 cm (C. melo, L. var. flexuosus ) and attaining weights between 50 g and more than 15 kg The aim of this investigation was to study the nature of gene action controlling the studied characters, so the predicted future sweet melon breeding program can be set up. Heterosis is considered in this study. Correlation coefficients and path- analysis are determined to study the direct and indirect effects among melon yield and its components.