Aquatic macrophyte aggregates essential components of much fresh water. The current analysis deals with the diversity of aquatic macrophytic vegetation of Kamsagar lake of Channagiri taluk. Aquatic macrophytes are important component of ecosystem and ply a major role in primary productivity of the aquatic ecosystem. An extensive field survey and plant collection revealed the presence of 06 species of aquatic plants belonging to 06 genera and 06 families in the site. Most identified aquatic species were found to be used for various purposes. The use for providing tradition health care was the most abundant causing the wide spread use of most of the plans for medicinal purposes, some species were edible and few species were used as fodder. In the present study was conducted during the month of March 2021 to June 2021, for 04 months. Diversity were calculated by statistical analysis. The present study describes the ecological status including Density, Abundance and Frequency of aquatic flora of the Kamsagar Lake. The data recorded from the site shows the Predominantspecies is Nelumbo nucifera having 1 frequency. It is found that highest density 6.0 and abundance 6.02. Unfortunately, aquatic ecosystem destroyed rapidly due to various reasons. Present paper is specially focused on aquatic plants biodiversity for their conservation.