Recently, The world is making efforts to develop Renewable energy for low carbon green growth. In Korea, Localization technology development of hydro power is necessary because almost every hydro power in Korea depends on overseas company. Especially, Hydro power studies are actively underway on approach of modernization of existing hydro power plants. Technical design of the small hydro power has been secured. Therefore, The technology of big hydro power has become necessary such as design, test, manufacture, installation. In this study, we studied the hydro power plant three-dimensional shape information obtaining method for securing technology for the design of hydropower plants. As a result of scanning using the non-contact 3D scanning technique, it was possible to obtain a precise 3D shape that satisfies the international standard IEC-60193. Using the shape, it was used for CFD analysis and model turbine testing to confirm its performance, and subsequently succeeded in developing a turbine runner with a novel design.