Abstract: Aiming at the problem of the use of gasket mode calibration of lathe center height and the limited use of tools, a lathe center height corrector with the characteristics of easy adjustment, good rigidity and strong stability was designed, and the device was composed of handle, dial, lock nut, thrust bearing, and other parts. After completing the production, debugging and improvement, the practice was carried out, and the device achieved stepless to stepless adjustment of the gasket, solved the problem of mutual interoperability and restriction due to the difference in tool thickness, lathe model and lathe center height, and reduced the tool damage and machining error caused by the inaccurate height of the turning tool center.