To provide a working method of an anchor used for slope surface work, etc., of labor saving, high efficiency, high quality, resource saving and energy saving.

This working method is executed by simultaneously holding up several anchor blanks 2 on a horizontal chain conveyor 7 and shifting these blanks to the following process with the conveyor 7 after simultaneously induction-heating these one end parts and simultaneously holding up the several anchor blanks 2 and simultaneously holding these other end parts thereof with a holding mechanism to execute the movements of turning-over and to the front and back direction. In this way, the end parts previously heated, are simultaneously and automatically worked as the sharp shape with the upper and the lower press dies 11, 12.