We investigated female entrepreneurship in Dakar with the following objectives: the study of individual characteristics of female entrepreneurs, their motivations, the existence of an entrepreneurial culture and their insertion in the networks. We were also interested in the entrepreneurial choice and when they take on the choice of the "administrative" sector (informal/formal). We have thus shown the importance of entrepreneurial culture and social capital in the Senegalese female entrepreneurship, as well as the motivations that distinguish entrepreneurial engagement in the informal sector compared to the formal sector. Necessity entrepreneurship is found more in the "small informal" sector, it participates, thanks to the support from relatives, to the participation of women's networks, in the smooth running of a developing economy since it is a source of employment that is adapted to the social and human capital of the majority of Senegalese women.