The aim of this study is to examine sources of gender disparity and the factors that contribute to this gap in labor force participation in Cameroon. From the theories associated to labor market discrimination and making hypothesis regarding labor force participation, our methodology uses models developed from theses hypothesis Based on economic theories explaining gender gaps and using the data from the third Cameroon household consumption survey, econometric methods have been used to decompose the various gaps. We find the following results: 1) the participation rate is a function of age, job training, education and locality of residence; 2) gender discrimination is one explanation of the unexplained gender gap in labor force participation; 3) the total gap between male and female workers, accounted for by the mean probability of labor force participation is 4,09% ; the decomposition shows that this gender gap explained by individual characteristics is 36.56% while Discrimination part is 63.44% of the total gap. The factors that contribute significantly to this difference are: age, years of education, job training, marital status and place of residence.