In this paper, we examine the foggaras of the oasis of Ezzaouia in the region of in Salah. During our visit to the oases of in Ghar during the year: 2013-2019, we discovered in the small oasis of Ezzaouia located 2 kilometers southwest of the oasis of in Ghar, a system of millennial irrigation composed of 5 foggaras. After surveys of the owners of the foggaras and the hydraulic services, we concluded that this heritage has never been the subject of an inventory. According to our surveys among foggaras owners, the total flow rate of these foggaras is around 50 l/min for a total length of the gallery equal to 1.5 kilometers. Unlike the foggaras of in Ghar, which capture the waters of the Intercalary Continental, those of the Ezzaouia oasis capture the waters of the Erg Ezzaouia.