Intelligent circuit breaker capable of replacing intelligent module on line and use method

The invention is suitable for the technical field of low-voltage electric appliances, and relates to an intelligent circuit breaker capable of replacing an intelligent module on line and a using method, the intelligent circuit breaker comprises a circuit breaker special base, and the circuit breaker special base is provided with thermal protection mechanism backup protection and magnetic protection mechanism backup protection; an intelligent monitoring module, an intelligent communication module and a mutual inductor module which are electrically connected are arranged on the special base for the circuit breaker and support hot plugging, and the mutual inductor module comprises a protection mutual inductor, a metering mutual inductor, a parameter memory and a shell frame specification ID; the intelligent monitoring module is used for adjusting parameters to maintain high-precision sampling and metering, checking the specification of a shell frame and restoring a set protection setting value, the intelligent c