The invention discloses a door plate and an equipment cabinet using the same. Sponge for sealing an outer side opening of a radiating window is assembled on the radiating window, sponge holes are provided in the sponge; a housing-shaped protective cover covering the outer side of the sponge is fixed on the outer side plate surface of a plate body; gas vent holes are formed in the protective cover; a heat exchange channel communicating inner and outer spaces of a cabinet body is formed by the gas vent holes, the sponge holes and the radiating windows. During use, the heat exchange channel can be communicated with inner and outer spaces of the equipment cabinet, so that hot air in the equipment cabinet can complete heat exchange with cold air outside the equipment cabinet through the heat exchange channel, and thus, the good ventilating and radiating effects of the whole equipment cabinet are guaranteed, and the air-cooling reliability of electronic components and parts in the equipment cabinet is improved.