Pastoralism as a mode of production has had an important bearing on the livelihoods of many people in arid and semiarid environments. In the recent decades' policies for land management in pastoral communities have changed from customary to statutory policies. This study analysed the dynamics of land management and their influence on the pastoral livelihood system at Kimana and Njoro villages in Kiteto district, northern Tanzania. Data for the study were collected from two focus groups, six key informants at the district level, and 296 households (equivalent to 10.1%) using household questionnaires, Findings show that whereas land is managed under customary and statutory laws, the emphasis is more on statutory laws. Statutory laws foster individualization of land ownership to some activities such as crop production, whereas communal lands are left for animal grazing only. Under statutory laws, individual land ownership is likely to be influenced by crop production, male-headed households, climate change, and resource use conflicts. However, statutory laws cannot guarantee sustainable resource management as the natural resources management institutions cannot dictate activities done in individual lands, as opposed to traditional systems. There is a need to harmonize traditional and modern forms of land management for increasing productivity and enhancing sustainable natural resources management.