This article presents the troubles about exercise of freedom religious in the labour's market of the contemporary society multicultural. First, it reviews the fundamentals aspects about the right of freedom religious and their expresions; second, it analyzes the smattering of secularism and her importance for the solution of the problems inclineds of the exercise of freedom religious. Third, it analizes jurisprudence about exercise of freedom religious in the labour's market. Finally, it outlines possibles responses to the demands of religious minorities.