The utility model discloses a laser monitoring system of circuit breaker body trouble nature displacement, including laser emission device, laser -bounce piece, laser sensor receiver, digital analog conversion module and backend server, laser emission device installation circuit breaker is towards the basic framework bottom of current transformer side on, the laser sensor receiver sets up in the circuit breaker internode flange department of circuit breaker towards the current transformer side, and the laser -bounce piece is fixed on the basic framework that current transformer inclined towards the circuit breaker through rotatable metal fixed arm. The utility model discloses the circuit breaker moved as arousing the signal at every turn in this system used the transformer substation, and measuring device adopts laser survey, through measuring laser monitoring body and the volume of the relative displacement change between the basic framework that sets up on the circuit breaker body to reach the master control backstage with monitoring results, this system can report to the police through the backstage after in displacement exceeds the allowed band, the accurate monitoring that has realized this work with in time report to the police.