The invention discloses a limit switch feeding device of a limit switch packaging machine. The limit switch feeding device of the limit switch packaging machine comprises a feeding rack, a fixed installing plate, a baffle, a limit switch limiting module, a feeding air cylinder installing plate, a feeding rotating air cylinder, an L-shaped limiting module, a feeding mechanical hand and a guide assembly; the fixed installing plate is fixed to the feeding rack through bolts and provided with the baffle, the feeding air cylinder installing plate and the limit switch limiting module, the feeding rotating air cylinder is installed on the side face of the feeding air cylinder installing plate, the L-shaped limiting module is installed on a rotating table of the feeding rotating air cylinder and located between the baffle and the limit switch limiting module, opposite limit switch installing grooves are formed in the L-shaped limiting module and the limit switch limiting module respectively, and the feeding mechanical hand and the guide assembly are installed on the feeding rack. By means of the mode, the limit switch feeding device is compact in structure and capable of replacing manpower for automatic feeding and saves labor.