The utility model relates to a detecting device of a coke pushing motor, in particular to a work failure monitoring and resetting device for a vortex controller of a coke pushing motor. The vortex controller provided by the utility model is connected with the coke pushing motor; the input end of the coke pushing motor is connected with the controller, and the output end of the coke pushing motor is connected with a coke pushing rod. The monitoring and resetting device comprises an encoder, a PLC (Programmable Logic Circuit) and the vortex controller which are connected together through a circuit, wherein the input end of the PLC is connected with the output end of the encoder, the input end of the encoder is connected with the coke pushing rod, the input end of the vortex controller is connected with the PLC, and the output end of the vortex controller is simultaneously connected with the coke pushing motor and the PLC. The output end of the vortex controller is connected with an acousto-optical alarm device. The detecting device has the advantages of low cost as well as high reliability and practicability because an operator can be prompted to adjust operation in time while the vortex controller is invalid caused by faults in the production process. The accident that the coke pushing rod falls into a coke oven because a vortex speed reducing controller is out of work is avoided.