An energy-saving type oxyanthraquinone production device is disclosed, the technology relates to the technical field of production device for preparing anthraquinone by taking anthracene as raw material and carrying out air oxidation. The device makes full use of oxidation reaction heat brought out by a high-temperature molten salt and high-temperature materials, normal-temperature air is preheated through a molten salt-air heat exchanger and a material-air heat exchanger in a fire barrier, the preheated air is provided for a hot blast stove, after the oxidation reaction heat energy is recycled by the heat exchangers, an air inlet temperature of the hot blast stove is changed from an original device room-temperature temperature into a hot air temperature of 180 DEG C-200 DEG C, and thus the device greatly reduces the coal consumption amount of the hot blast stove and has the energy saving effect.