Abstract: - Centrifugal pumps are used to transport liquids/fluids by the conversion of the rotational kinetic energy to the hydro dynamics energy of the liquid flow. The rotational energy typically comes from an engine or electric motor or turbine. In the typical simple case, the fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits. Pumps are widely used forwater supply plants, steam power plants, sewage, oil refineries, chemical plants, hydraulic power service, food processing factories and mines, because of their suitability in practically any service. Therefore it is necessary to find out the design parameter, working conditions and maximum efficiency with lowest power consumption, The aim of the project is Design modification and static dynamic analysis of centrifugal impeller using various materials generally using materials are conventional material .In this project taken composite materials because of composite materials have high strength and non corrosion material. non metallic component so, the chattering noise will be low compared to other materials during the functioning process. Find out the best material on these materials(CFRP ,GFRP, Al 1060,Inconel 625,Inconel 740) to decrease the weight and increase the efficiency by using the design software is catia and analysis using the Ansys software. finally find out the stresses, strains, deformations in static analysis and Deformations are find out at different frequencies in modal analysis .