There is provided a production management system that requires no backup step for performing a backup operation when trouble occurs in a robot, and can increase workability of a repair operation of the robot. The production management system for a production line mixedly including robot operation steps and manual operation steps, including: a monitor that displays the cause of abnormality that occurs in the robot operation step; a warning device that warns of occurrence of abnormality in the robot operation step; and a robot reversing device that reverses the orientation of a robot when abnormality occurs in the robot, wherein production is continued by changing the robot operation step where the abnormality occurs to the manual operation step. Also, a repair operation is performed for the robot reversed by the robot reversing device.