Disclosed are a floating type breakwater, a floating type breakwater structure, and a control method for a floating type breakwater. According to the present invention, the floating type breakwater, which offsets wave energy and floats on the sea, includes: a rotation body rotating around a gravity axis of the floating type breakwater; an inclination measuring unit measuring an inclination and an angular speed of the gravity axis of the floating type breakwater on a reference axis; a rotation force generation unit rotating the rotation body around the gravity axis; and a rotation control unit controlling the strength and a rotation direction of a rotation force generated by the rotation force generation unit based on the inclination and the angular speed measured by the inclination measuring unit. According to the present invention, the floating type breakwater can stably reduce the wave energy and can be moored on the sea in a predetermined position without underwater construction.
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