The utility model provides a real -time control protective devices of circuit breaker tripping and closing coil, protection device mainly includes singlechip, power module, real -time clock module, temperature measurement module, current detection module, liquid crystal display module and high power switch module, the singlechip dispose power module, real -time clock module and liquid crystal display module respectively to connect the temperature measurement module of ability real -time detection breaker coil temperature and the current detection module that can detect the breaker coil electric current respectively, the singlechip still connect be used for turn -offing the breaker coil return circuit, the controllable high power switch module, protection method is: when coil when action circular telegram, the singlechip in real time relatively the winding temperature that records of thermocouple (i) (i) (i) (i) set, (i) T (i) is greater than and sets for the temperature (i) (i) during set, the single chip microcomputer control high power switch circuit turn -offs the breaker coil return circuit to T, shows current time and warning of temperature value on the display screen T as real -time temperature with setting for the temperature.