The invention relates to the technical field of ship body segmented turnover devices. The invention further discloses a fixed type thin plate segmented turnover device. The device comprises a supporting frame, stand columns are fixedly installed on the right side of the supporting frame, a lifting cross beam is movably installed at the top between the two stand columns, a rotating mechanism is fixedly installed at the top of the lifting cross beam, a rotating hinge is fixedly installed at the other end of the rotating mechanism, and a rotating platform is fixedly installed on the lifting crossbeam through the rotating hinge. According to the fixed type thin plate segmented turnover device, through the special turnover platform, structural deformation of thin plate segments in the turnoverprocess is avoided; by means of the new connecting mode of the locking trolley and the turnover frame, the efficiency of segmented fixing and locking is effectively improved, and the segmented arrangement range of lifting lugs is enlarged; the lifting mechanism and the rotating mechanism are used for providing ascending and overturning power for the rotating platform, segmented turnover automaticcontrol is effectively improved, operation is high in quality and efficiency, the device is safe and reliable, and the workload of operators is effectively reduced.