The uncontrolled rapid population growth in our regions and strong industrialization are putting pressure on natural resources, accelerating climate change and desertification. This study aims to follow the evolution of land use in the N’ZI watershed. Three images from Landsat 4 & 5 (1986), Landsat 7 (2000), and Landsat 8 (2020) were used to carry out this study. Remote sensing and geographic information systems (GIS) were used to monitor land cover as a whole. Various treatments were performed using Envi 5.1 and ArcGIS 10.4.1 software programs. The results showed that changes took place during the periods of 1986-2000, 2000-2020, and 1986-2020. The results of the analysis showed the regression of water surfaces from -64.95% to -52.47% during the period of2000-2020 and 1986-2020, on the other hand, there is a great increase in bare-ground dwellings (373.63%) and low-cover soils (10.60%). These progressions were due to the destruction of forests -86.93%, savannas -3.97%, and agricultural areas -9.30% between 1986 and 2020