The coastal landscape present in the Eastern Coast of Maranhão has dune fields as one of its elements, composing a dynamic environment that expresses significant spatial and temporal changes. As part of this landscape, the littoral of Tutóia exhibits eolian features relatively near to the coastline resulting from the combined action of waves, coastal currents, fluvial action, sea level variations and climatic factors that contributed to the current coastal landscape configuration over time. Being inserted in the Environmental Protection Area of Parnaíba Delta, the study area deserves attention because of its socioeconomic and environmental importance, which justifies the development of studies that contribute to a better understanding of the processes and dynamics that operate in the region. The present work main objective is to identify changes that occurred in the coastal landscape of Tutóia (MA) city, associated with the coastline erosion and progradation processes and the dune fields evolution dynamics over the last 23 years. It is expected to contribute to a better knowledge of the Eastern Coast of Maranhão dynamics by providing information that will serve as a subsidy for future preservation and planning the use and occupation projetcs of the coastal zone. For the research development, satellite images (1994 to 2017) were analyzed and a time series was elaborated through geoprocessing techniques such as remote sensing and geographic information systems (GIS). The results imply a multitemporal evolution map of the mobile dune fields, where had an increase on the dune displacement velocity and on the coastal line erosion, which allowed identifying the significant influence of the Intertropical Convergence Zone (ITCZ), which when subdued to the Sea Surface Temperature (SST) anomaly and the El Niño occurrence, interferes in Brazil northeast region, increasing the rain scarcity period and the trade winds intensity, being these the causes of the dune migration velocity increase in the analyzed period. The present dissertation gathered important information about the local coastal dynamics, especially in a stretch of the coast with scarce information, however, it is important to continue the studies developed in the area, deepening the knowledge about the behavior of these environments owing to the planning of actions related to the occupation and exploitation of natural resources processes and that a balanced development is craved, respecting the intense variability of the coastal environment.