This work is the definitive publication of the excavation that took place between 1977 and 1984 of several tombs by the French archaeological mission in Abu Dhabi (United Arab Emirates): six tombs of Hafit type (first phase of the local early Bronze, about 3000-2700 BC) and two tombs of Umm an-Nar type (second phase of the early Bronze Age) tomb M of Hili and tomb A of Hili north. Tomb M dates to the middle of the architectural sequence of the necropolis of Hili and is one of the rare tombs known for the middle of the 3rd millennium. Tomb A of Hili north, which is later, remains today a site of the first importance for the richness and variety of the discoveries made. It is an important landmark in the establishment of a regional chronology and its study has greatly enriched our perception of trade, on different scales. This work is the first of a series that will be published on the work carried out in the region of Al-Ain by the French mission, which in 1999 became the French archaeological mission to the United Arab Emirates. The next two volumes will present the anthropological study of tomb N of Hili and the study of ancient technologies at Hili.