The invention relates to a tracking electronic fire protection controller and a control method thereof. The control method includes the steps that a rectifier bridge is connected onto an alternating current power supply line forming an alternating current circuit, the output end of the rectifier bridge is connected with a switch tube and load current sampling resistance to form a direct current control circuit for on-off control of the alternating current circuit, a control electrode of the switch tube is connected with a signal control circuit, when the load current sampling resistance detects the abnormal load current, the signal control circuit sends a shutoff signal to turn off the switch tube, when the direct current control circuit is disconnected, the rectifier bridge then disconnects the alternating current power supply line, a fast electronic self-locking switch keeps the switch tube in the continuous shutoff state through the self-locking function, the load in the alternatingcurrent circuit keeps the power off state, and thus short circuit, overload and virtual connection protection of the load and the power supply line can be realized. The tracking electronic fire protection controller and the control method thereof can be applied to electrical safety protection of various places, can replace control cabinets of various machine tools, electrical equipment and the like, and can be directly used as intrinsically safe explosion-proof products.