PURPOSE: A product rotation device is provided to rotate a product moving along a conveyor belt to be vertically inversed. CONSTITUTION: A product rotation device comprises a main frame (20) and a drive unit (30). The main frame includes a first guide part (21) for guiding a product moving along a conveyor belt. One end of the drive unit is eccentrically coupled to the rotary shaft of the main frame and guides the rotation of the main frame.