The invention provides a rotating bag turning machine. The rotating bag turning machine comprises a rack, a power mechanism, a rotating frame, a front end auxiliary support and a rear end auxiliary support, wherein the rotating frame is connected to the power mechanism and is rotationally arranged on the rack in the width direction of the rack, the front end auxiliary support is fixedly arranged on the rotating frame along the length direction of the rack and is used for clamping and bearing a packaging box, the rear end auxiliary support is fixedly arranged on the rotating frame, and the front end auxiliary support and the rear end auxiliary support are arranged in a mirror symmetry manner relative to a rotating middle shaft of the rotating frame. According to the rotating bag turning machine, the packaging box can be automatically overturned and can be overturned in a reciprocating and circulating manner, so that the labor intensity is reduced, and the working efficiency is improved.