A DC relay capable of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals, a push rod component, a straight sheet type movable spring mounted on the push rod component and two permanent magnets. Two permanent magnets are respectively arranged on two sides in the width direction of the movable spring. Each permanent magnet connects one L-shaped yoke clip, which has one end connected to the magnet, and the other end at a position outside the two ends in the length direction of the movable spring. Upper magnetizers are mounted above the position. The lower magnetizers are mounted under the position. The upper and lower magnetizers can approach or come into contact with each other through the through holes in the movable spring. At least two independent magnetically conductive loops are formed in the width direction of the movable spring by the upper and lower magnetizers.