The invention belongs to the technical field of nursing equipment and especially relates to a body-turning device. The body-turning device comprises a frame and a body-turning mechanism; an accommodating space is formed under the frame; the body-turning mechanism comprises a lying bracket, a driving component and a plurality of bearing belts; the lying bracket is located in the accommodating spaceand is hung on the frame through a plurality of hangers; length direction of the lying bracket is located as a first dimensionality; width direction of the lying bracket is located as a second dimensionality; the driving component is arranged on the frame and is in driving connection with the hangers, so as to drive the hangers to drive the lying bracket to turn over around the first dimensionality and/or the second dimensionality; the bearing belts are all detachably overlapped on the lying bracket; hangers are driven by the driving component to hang the lying bracket and turn over, so thatbody posture of a paralysis or hemiplegia patient can be turned into the posture of lying on one side or leaving bed and suspending in air from the posture of lying on back. When the nursing personnelnurses the paralysis or hemiplegia patient, the body-turning device can be operated by one person, so that the labor intensity of turning and nursing the paralysis or hemiplegia patient can be obviously reduced.