This article discusses the stability and development of prehistoric human societies in eastern Morocco through various ancient periods, through field research that included several archaeological sites of word significance in the region.We have discovered and important archaeological remains extracted from the archaeological layers, which is considered an "archaeological document", on which we rely to identify human societies and the ancient civilizations to which they belong. The Eastern of Morocco, through these researches, is considered as one of the richest archaeological areas in Morocco, where more than 500 archaeological sites have been identified so far thanks to field investigations. In the province of Nador, the sites of Ain Beni Mathar and Guefait, the Ganfouda Cave, the Ghafas Cave in Ras Asfour in the Jerada Province, the rock art in Figuig and Ich in the Figuig province, etc…We would like to point out that some of these archaeological sites and caves have gained international fame through research and scientific results obtained, and have previously been classified as a national heritage, such as the Tafoughalt cave, the Zegzel cave, the Kasbahs of Debdou and Saidia, and the palaces of the Figuig Oasis with its rock art, which were included in the heritage of ISESCO and on the list Guidelines for the UNESCO World Heritage. We also point out that there are other sites of archaeological and natural importance in the eastern Morocco, which deserve to be classified within the national heritage, such as Ifri n’Amar, Ghafas, Hassi Ouenzga, Genfouda, Ain Beni Mathar, Guefait,, etc...This has been tangibly confirmed through field research and the resulting archaeological document that the eastern of Morocco has always been a welcoming and stable land for many prehistoric human societies during ancient times.