Water energy can be utilized as a power plant. A water turbine is a machine that uses water to rotate blades and a turbine generator to produce electricity. This research was carried out using a microhydro type water turbine experimental rig using gravitational of water with 2 meter high. The measurements were taken from the turbine such as turbine rotation speed, water flow rate, torque, and voltage from the generator that coupled with the turbine, which had the variable number of blades. The research method used is the experimental method, direct observation, design and testing of the turbines. At the design stage the turbine is designed based on three variables, namely the turbine blades with 10, 12, and 14 blades. It was found that the performance of the turbine is up to 34% of energy efficiency.