The invention discloses a full-automatic curved board dividing machine which comprises a machine base, a workbench arranged on the machine base, an X-axis guide rail assembly, a Y-axis guide rail assembly, a Z-axis guide rail assembly, a sliding support, a sliding connecting block, a cutting spindle fixed to the sliding connecting block, an alarm device, a universal tray, an industrial camera support which is arranged beside the cutting spindle and used for installing a CCD industrial camera, an LED display arranged on the lower middle portion of the alarm device, and an industrial control host computer connected with the display. The industrial control host computer controls the cutting path of the cutting spindle. The full-automatic curved board dividing machine is easy and convenient to operate and higher in safety; the cutting spindle is controlled by a system to move along any path, and the effect that a printed circuit board (PCB) of any shape can be cut is achieved; the structure is optimized, and the highest efficiency is achieved with the smallest space; and through the arrangement of a metal plate dust cover and an automatic filtering cleaner, the functions of preventing dust and keeping the equipment working space clean are achieved, and the service life of the equipment is prolonged.