Introduction. This article explores the phenomenon of female pharaohs' reign in Ancient Egypt, focusing on the rule of Hatshepsut and Tausert during the New Kingdom. The research delves into the historical context, cultural significance, and peculiarities of power legitimization during their reigns. By analyzing primary sources, including inscriptions, statues, and archaeological artifacts, this study aims to shed light on the unique circumstances that allowed these women to ascend the throne in a society traditionally dominated by men. The accession of Queen Hatshepsut, 18th Dynasty, challenged prevailing expectations, which required the use of various additional instruments to legitimize her power: adopting male portrayals, emphasizing divine lineage, implementing an extensive building program, military and trade expeditions, and more. Later, Queen Tausert, 19th Dynasty, who ruled during a period of political turmoil and decline, employed similar strategies. Tausert's reign serves as a contrasting example, characterized by her association with her deceased husband, Seti II, as a means of maintaining legitimacy. The article explores the complexities of Tausert's rule, including her attempts to consolidate power, overcome the influence of the powerful Theban priesthood, and the challenges she faced as a female ruler during uncertain times. Methods.The methods of textological and critical analysis were used in the work with sources, and the translation of Egyptian hieroglyphic texts into Ukrainian was also carried out. Through a comparative analysis of the reigns of Hatshepsut and Tausert, we can understand the broader socio-political dynamics of Ancient Egypt, the shifting structures of power, religious policies, and society's attitudes towards gender roles. Conclutions. The result of these research is the creation of new hypotheses regarding the interpretation of the phenomenon of the reign of female pharaohs in Ancient Egypt. This allows a comprehensive consideration and understanding of an important aspect of the legitimation of power during the crisis periods of the political history of Ancient Egypt.