Cathode plate correcting machine

The invention discloses a cathode plate correcting machine. The cathode plate correcting machine comprises a rack, a correction cross beam and a positioning workbench, wherein the correction cross beam is mounted on the rack and can be lifted up and down; the positioning workbench is arranged on the rack and located right below the correction cross beam, a positioning groove is formed in the positioning workbench, a to-be-corrected cathode plate is placed on the positioning workbench in the horizontal position or in the vertical position, the to-be-corrected cathode plate is flatly placed on the positioning workbench when being located at the horizontal position, the to-be-corrected cathode plate is oriented in the vertical direction when being located at the vertical position, and a conductive rod of the to-be-corrected cathode plate is matched in the positioning groove. The cathode plate correcting machine has the advantages of being convenient for operation, capable of saving time and labor, good in correc