NOVELTY - The device has a cover housing arranged in both sides of a drum housing (40). A stiffness enhancing groove is formed on a drum (10a). Water is ejected to an exhalant part (39). A water supply mouth (31) is connected to a base blade (20) that is connected with a turbine shaft. Gap is formed between an outside front end part of a leading end of the base blade and turbine installation spaces. The cover housing is formed with 3-blade turning spaces and combined to an inlet pipe. Three supply openings (34, 36) are connected to a leading end of vent (38).    USE - Multi-shaft water utilization power generation device.    ADVANTAGE - The device utilizes the water for rotating the turbine blade so as to generate power in an environment-friendly manner. The device reduces fatigue of the blade due to dispersion effect of pressure through a distributed load, rotates the blade along moving direction of the water, enhances angular velocity and flow rate of the water and controls drum size of the turbine in blade turning space without reduction of water pressure and flux so as to improve power generation efficiency. The device controls drum size of the turbine in blade turning space without reduction of water pressure and flux and that the speed of a current and water pressure of water act on many blade and the power generation of the high efficiency accomplishes. The device reduces requirement number of turbines and number of blades so as to reduce size of the device. The device disperses energy into each turbine and reduces stress of a blade rotating part bearing so as to reduce intensity of the blades, so that service life of the blade can be improved. The device avoids usage of a cap for sealing a side of each turbine.    DESCRIPTION OF DRAWING(S) - The drawing shows a side sectional view of a multi-shaft water utilization power generation device.    Drum (10a)    Base blade (20)    Water supply mouth (31)    Supply openings (34, 36)    Vent (38)    Exhalant part (39)    Drum housing (40)