Miniature circuit breaker with leakage protection

The utility model provides a miniature circuit breaker with electric leakage protection, which comprises a circuit breaker body and a wire plugging hole arranged on the surface of the circuit breaker body, a wire is plugged in the wire plugging hole, a gap is formed between the wire plugging hole and the wire, and a waterproof assembly for waterproofing the gap is arranged on the outer side of the wire plugging hole. The waterproof assembly comprises a first sealing element and a second sealing element which are oppositely connected to the circuit breaker body in a sliding mode, and a driving assembly located on the outer sides of the first sealing element and the second sealing element. After the electric wire is inserted into the wire insertion hole, the driving assembly drives the first sealing element and the second sealing element to move oppositely, so that the first sealing element and the second sealing element wrap the electric wire and shield the gap; through the arrangement of the waterproof assemb