The invention discloses an intelligent circuit breaker with a fault information feedback method. The circuit breaker comprises an electric signal monitoring and protection unit, and the electric signal monitoring and protection unit is used for detecting main circuit current, a main circuit voltage and leakage current, and sending a detected electrical signal to a control unit; the control unit receives the electrical signal detected by the electrical signal monitoring and protection unit, and sends a control command to an execution unit and a communication unit according to the electrical signal; the execution unit is used for performing the closing and opening action of the circuit breaker according to the control command received; the communication unit is used for sending the receivedelectrical signal to an external device. The intelligent circuit breaker with a fault information feedback method improves the safety and convenience of a power supply system, the protection functionand range of the circuit breaker are improved, and the detection and feedback functions of the circuit breaker are expanded, thereby better achieving the monitoring and protection functions of terminal power distribution equipment.