Salvinia molesta D. S. Mitch. Is an invasive aquatic fern. It is considered one of the world`s worst weeds because of its high mobility, tolerance to environmental stress, exponential growth rate and level of difficulty to control. After plant death, the residues are go to the soil as waste. As much more amount of Salvinia wastes have been intermixing with soil every day and changing the soil quality. So, an attempt has been taken to analyses the impact of waste Salvinia on alteration of both physico chemical and elemental content of soil. An attempts were taken to use the waste Salvinia as a bio-fertilizer. The novelty of this work is the utilization of waste as wealth in an environment friendly way. This research address the research gap by analyzing the elemental content present in Salvinia molesta D. S. Mitch. In the present study it was found that the waste which causes environmental pollution containts different useful elements which is major and minor element for plant nutrition. It was observed that the soil which were treated with Salvinia waste contained more nutrient than the normal garden soil. So, Salvinia molesta D. S. Mitch. Waste can be recommended as the organic fertilizer which can fulfill the nutrient level of soil and enhance the soil fertility.