doubt, it is impossible, or perhaps very difficult, to have an exact and correct understanding of the theme of social theories without knowing their intellectual and philosophical principles. The theory of feminism is a trend-social theory whose thoughts depend on its intellectual and philosophical principles. The present paper tries to analyze feministic methodology by focusing on the radical and post-modern feminists and the challenges facing this theory. Using a descriptive- explanatory method, this paper answers the following questions: What is feministic methodology? What are its epistemological, ontological, and anthropological principles? What, according to the realism of Sadraian philosophy, are the defects of feministic methodology? The research findings show that wisdom and rationality are human indexes and that the gender of knowing agent does not have any role in human knowledge. Due to their negligence of man's rational identity, feminists consider knowledge as a gender-related phenomenon ensnared in relativism, which leads to skepticism.