The utility model provides a switch board electric leakage current monitoring system that can break and keep in repair, it includes control box and electric leakage monitoring case, the electric leakage monitoring incasement is including electric leakage current monitoring circuit be equipped with the circuit board be connected with the current monitoring circuit wire that leaks electricity electric leakage current monitoring wiring hole, electric leakage current monitoring circuit power supply wiring hole and ground wire on the preceding terminal surface of electric leakage monitoring case and connect the hole, still be equipped with switch board circuit board connecting insertion hole, the electric leakage current monitoring circuit is connected with the distribution circuit wire of switch board supply power jack and ground wire jack on the preceding terminal surface of this electric leakage monitoring case, electric leakage current monitoring circuit power supply jack is connected with the current monitoring circuit power supply wiring hole wire that leaks electricity, the switch board does the power supply of electric leakage current monitoring circuit. The utility model discloses the electric leakage monitoring function to the switch board can be guaranteed, electric leakage monitoring display screen and the requirement of electric leakage current monitoring circuit installation detached can also be satisfied simultaneously.