The invention discloses a mixing device for feed processing. The device comprises a device body, a first motor is fixedly mounted on the inner wall of the top side of the device body, the inner wallsof two sides of the device body are fixedly provided with the same partition plate located below the first motor, a first rotating hole is formed in the top side of the partition plate in the verticaldirection, discharging holes formed in the top side of the partition plate in the vertical direction are formed in two sides of the first rotating hole, a first stirring shaft is movably mounted in the first rotating hole, two ends of the first stirring shaft extend out of the first rotating hole, and the top end of the first stirring shaft is fixedly mounted on the output shaft of the first motor through a first shaft coupling. The mixing device has a simple structure, makes a feed mixed for the first time through first stirring blades, and makes the fully mixed through multidirectional rotation of a second stirring shaft, so the feed is mixed evenly and thoroughly, the feed mixing efficiency is improved, and the requirements of people are met.