Qaliubiya governorate is one of the governorates of Lower Egypt, and due to the spatial framework of Qaliubiya and its features in terms of location and moderate climate, all of this is of the importance of the governorate and it has gained a great position throughout the historical ages, especially in the era of the Mamluks who established buildings and facilities in it, so there were bureaus and the house of Muslims' money and others. . And at the head of these Mamluk sultans who took care of the governorate was al-Zahir Baybars, so he built canals and dams, and a large mosque was attributed to him in Qalioub, the base of the region at that time. It is likely to be built between 668-670 AH / 1270-1272 CE. The research aims to study the Baybars mosque in Qalioubia in Qalioubia governorate an archaeological, civilizational and descriptive study. The importance of the research lies in that it publishes documentation of this effect for the first time, as well as the research, provides an overview of the cultural and historical position of Qalyubia Governorate and the city of Qalioub, how to benefit from them in the field of tourism and put forward recommendations that help their development to achieve this Target. Despite the importance of this effect, archaeological studies have not previously indicated it.