Abdi, Nidal2023-09-042023-09-0420231112-92552588-2414http://hdl.handle.net/123456789/14920This study focused on shedding light on the most important legislation and laws that regulate, manage and protect the periurbain lands surrounding the major cities already exploited or vacant in Algeria since independence until the present day. The struggle over this type of land between the various sectors in the Algerian city (urban, agricultural, industry, trade) is not recent, but its roots go back to the beginning of the seventies of the twenty first century. The study covered the metropolitan city of Constantine, which experiencing an accelerated urban dynamic due to the high demographic growth and the increasing and continuous demand for housing. This led to the emergence of a set of imbalances and spatial problems, despite the presence of many legal texts and strict and clear urban policies. Methodologically, we used several methods: descriptive, analytical and deductive, in addition to the historical method, then relying on the data of the general census of housing and population for several periods on the one hand, and the results of various interviews and dialogues with local groups on the other hand. Finally, this study recommends the need to monitor and control the future phenomenon of urban expansion of cities. In addition to updating laws and activating the disabled ones in order to protect the semi-urban land adjacent to our cities and ensure its sustainability now and in the future.enPer-urban landExpansionAgricultural exploitationLawUrban planningConstantine metropolisArticle