This paper tackles the issue of sex equality in the Jaw by exploring the entangled relationship between the imposition of Western laws, the changing faces of patriarchy, and promoting sex equality in a local context. In the legal academia as well as in the feminist legal reform movement, it is generally perceived that the Westernization of the Taiwanese legal system has brought about equality for women, and, a myth, that Western laws should serve as the key reference in promoting sex equality. Through a historical investigation, the author contests this prevailing myth, and argues instead that the Westernization of the laws has simultaneously facilitated sex equality by granting women certain modem legal rights and protection, while also reinforced male dominance by modernizing local patriarchy. Not only has the oppression of Western Laws often been overlooked, the power relationship between the Colonizer and the Colonized as well as the West and the rest, which created the myth, also remain uncontested. The process of Westernization has created a series of dichotomies, which turns into an Orientalist trap that reduces the Taiwanese society to the sole source of patriarchy and enhances the superior positionality of Western Laws. As a result, local faces of patriarchy cannot be accurately represented, and possible paths of women's liberation are reduced into a movement towards Westernization. To move beyond this impasse, the author suggests the strategy of provincializing Western jurisprudence and Western feminist jurisprudence, and propose the approach of critical comparative law in local feminist legal reform.