The following tracks the use of Foucault in the main works of Judith Butler. In that sense, systematic and comprehensive exhibition of the work of Butler or readings and feminist criticism has been made of Foucault's analysis does not cover . This paper is an investigation of Foucault Butler matrix , questioning what impact generated by the work of Foucault 's thought Butler? Do you continue Butler Foucault "project" ? What aspects are associated and in which both authors distance themselves ? Certainly , Judith Butler throughout their texts resumes and reworks , shared and distance from Foucault's thought . On many occasions their texts are dedicated to dialogue even exist points between the deep studying both subjects such as the question of power , sexuality and , in the last stage of the two, an ethical twist.