The explosion-proof lamp provided includes a light source cavity and a drive cavity independent of each other. The drive cavity is has a power driver and a junction box, is connected to the light source cavity via a conducting wire, and drives and controls a light source in the light source cavity to be turned on. The light source cavity includes a heat sink, a glass cover, and the light source. The glass cover and the heat sink are connected to form the cavity, and the light source is mounted in the cavity. The heat sink includes a heat dissipation bottom plate and a plurality of heat dissipation fins annularly mounted on the heat dissipation bottom plate, absorbs heat generated in the light source cavity, and dissipates the heat into an external environment.