The invention discloses a high-efficiency mixing device for rare earth production, comprising a mixing tank, a first driving device is arranged at the upper end of the mixing tank, a second driving device is arranged at the lower end, and a first rotating shaft is vertically arranged in the mixing tank , the second rotating shaft, the feeding pipe and the dispersing cover, and the second rotating shaft is provided with a helical blade; the second driving device, the second rotating shaft, the feeding pipe and the helical blade constitute a screw feeding mechanism, which transports the materials at the bottom of the mixing tank to the top of the feeding pipe, and then scattered on the dispersing hood. The first driving device drives the dispersing hood to rotate through the first rotating shaft, so that the materials scattered on the dispersing hood are dispersed and then fall down, and then the mixing tank is moved by the screw feeding mechanism. The material at the bottom is transported to the top of the feeding tube, and the material is mixed in this way. The mixing method of the invention not only realizes the cyclic mixing of the materials, but also continuously disperses them in the mixing process, so that the rare earth production materials can be uniformly mixed quickly, the time required for uniform mixing is short, and the production efficiency is high.