The invention relates to the field of feed processing equipment, and specifically provides a dispersing device for processing a feed. The device comprises a dispersing stick, and a roller which is driven through a motor; the roller is transversely arranged; a feeding opening is formed in the first end surface of the roller; the wall of the roller is fence-shaped; the dispersing roller is vertically connected with the second end surface of the roller and extends to the first end surface of the roller; materials can be fully and uniformly dispersed under the synergistic effects of a centrifugal force, the dispersing stick and the roller wall, so that the dispersing efficiency is increased. The dispersing device for processing the feed is applicable to the dispersing of materials in feed processing.