Human migration has played an important role in the construction or dissolution of states in southern Africa. With the coming of the colonial period there was an intensification of the process of migration, mainly for work. Such movements were premised on the uneven development of colonial economies in which some areas became suppliers of labour while others became labour markets. In the case of Swaziland, the migration of labour was dominated by male migrants as the existing labour markets offered more opportunities for men. This view has become a conventional interpretation of the disparity in the mobility of men and women within states or across borders. This article uses the experience of Swaziland to extend the discourse on why men dominated the migration currents in Swaziland during the colonial period. It points out that it is no longer useful to rely on purely economic explanations of why more men were migrating than women in colonial Swaziland. The argument pushes the frontier of analysis beyond economics and argues that a more significant explanation is to be found in the power relations at the homestead level, whereby men had the power to determine if and when women could migrate. The discussion shows that Swazi men, in collaboration with colonial administrators, employed different strategies to control the mobility of women. The intention of the men was to keep women in the rural areas and they used their power in the homestead and their influence on the colonial administration to create barriers against female migration to local and cross-border industrial centres.