Disasters caused by climate change have wreaked havoc on the environment around the world in recent decades, to the point that even deserts have been flooded. Considering floods as a major disaster across various countries, this research has accumulated different methodologies and techniques to analyze flood mapping according to geography of many regions across the world. This paper discusses about flood plain mapping and analysis of the past two decades. Recently with the help of satellite images and the application of remote sensing and GIS this concept is widely used by various researchers. To simulate these flood plain areas, software such as HEC-HMS, HEC-RAS and ArcGIS are quite popular and widely used. The purpose of this review article is to divide the research into four primary sections: floodplain mapping, analytic method, digital elevation model, and software used.. It was observed that globally according to site and climate conditions the effect of floods changes geographically and as a result, the approaches and techniques employed by various researchers differ from one location to the next and according to their research goals. As a consequence, gaps have been identified, and the authors have applied strategies to tackle their problem. This document serves as an overview of the research's important literature review
