This study examines some aspects of rural urban migration in Botswana, focusing in particular on Gaborone, the capital. Models are specified that relate age grouping, sectoral income differential, government employment and time to male and female migration. Econometric models were based on published data. The study indicates that there is a positive relationship between migration and central government employment, expressed as a proportion of total formal employment. The differential between agricultural and average non-agricultural income, especially for male migrants, is also positively related to migration. The results show that with time, male and female migration to Gaborone is likely to increase. Male migration is positively related to arable crop cultivation, whereas female migration has an adverse effect on it. Neither has any significant influence on harvested crop area in Botswana