This invention relates to a dye dispersion device, which includes a dye drum equipped with a discharge port at the bottom. The dye dispersion device also includes a feeding pipe used for communicating the discharge port with a dyeing machine, a steam supply device used for introducing heating steam to the dye drum, an air compressing system used for supplying high-pressure air for the dye drum and a water pipe used for introducing water to the dye drum, wherein the steam supply device comprises a steam source and a steam pipe, one end of the steam pipe is connected with the steam source and the other end is introduced to the bottom of the dye drum; and the air compressing system comprises a gas generating device and an air compressing tube, and the air compressing tube is introduced to the bottom of the dye drum and is used for introducing the high-pressure gas generated by the gas generating device to the dye drum. The dye dispersion device provided by the invention is simple to operate, has high efficiency and a good dye dispersion effect, and can guarantee the product quality.