The utility model relates to a cable or electric wire introducing device of an explosion-proof lamp. An installing opening for installing a steel pipe and the cable or electric wire introducing device are respectively positioned at two sides of a lamp case. The installing opening for installing the steel pipe is arranged at the outer side of the lamp, the cable or electric wire introducing device is arranged at the outer side of the lamp, the installing opening or the introducing device can be respectively installed, and the explosion-proof sealed installing quality of a cable or electric wire of the explosion-proof lamp can not be interfered or influenced. The cable or electric wire introducing device comprises an introducing opening, a rubber sealing ring, a gasket, a fastening element, a pressing element and the like. After the steel pipe is tightly screwed and is arranged at the steel pipe installing opening of the explosion-proof lamp through screw threads, the cable or electric wire passes through the steel pipe and then sequentially passes through the rubber sealing ring, the gasket and the pressing element, next, the rubber sealing ring, the gasket and the pressing element penetrated with the cable or electric wire is put into the introducing device, the pressing element is fixed on a screw hole beside an inner hole of the introducing device through the fastening element, and the rubber sealing ring is tightly pressed. The cable or electric wire introducing device has the advantages that the functions for installing the steel pipe and sealing the cable or electric wire are separated, the installation of the explosion-proof lamp is convenient, the introduced cable or electric wire of the explosion-proof lamp can be reliably sealed, and the explosion-proof performance of the lamp is ensured.