The invention discloses an intelligent circuit breaker. The intelligent circuit breaker comprises a circuit breaker switch body, wherein the circuit breaker switch body is connected with an intelligent control module and is also connected with an input end of a current transformer in a coupling manner; an output end of the current transformer is connected with a current detection end of the intelligent control module; the circuit breaker switch body is connected with an input end of a first voltage sensor, and an output end of the first voltage sensor is connected with a voltage detection end of the intelligent control module; the circuit breaker switch body is connected with an input end of a second voltage sensor; an output end of the second voltage sensor is connected with the voltage detection end of the intelligent control module. The intelligent circuit breaker is simple in wire connection structure and convenient to mount, is capable of monitoring voltages of two inlet wires in real time and switching automatically when the voltage is lost, and is short in switching time, so that the power supply quality is improved and the cost is lowered at the same time.