The purpose of this study was to analyze the major causes of marginalization and illiteracy of “Menas”, “Menjas”, and “Hilanchas” social classes in Dawro and Wolaita zones. In order to attain this objective descriptive survey method was employed. The study was carried out in four kebeles of Wolaita zone and 6 kebeles of Dawro zones. Purposive sampling technique for the selection of the weredas and availability sampling technique for the selection of the kebeles and subjects were used. Hence, the wereda education office authorities, parents and the children of ‘Menjas’, ‘Menas’, and ‘Hilanchas’(in Wolaita case) were involved, and the questionnaire was distributed among officials, filled out and in addition, the wereda education office authorities, parents and children of those social classes were interviewed in group.