The present invention discloses a feeding device for an experimental mixer, comprising a loading mechanism, which is slidably arranged on a frame, and a driving mechanism is fixedly arranged on the frame, and the driving mechanism is used to drive the loading mechanism to vertically rise and fall on the frame; the loading mechanism comprises a hopper, which is rotatably arranged on a hopper frame, and the hopper frame is slidably arranged on the frame; a hopper limiting mechanism is horizontally arranged on the frame, and the outlet end of the hopper can rotate between two hopper limiting mechanisms; the outlet end of the hopper is connected to the feed port of the mixer; the present invention drives the hopper frame to move vertically upward under the drive of the driving mechanism, thereby realizing the vertical up and down movement of the stirred material; the hopper and the hopper frame are rotatably arranged, and when the hopper rises to a set height, under the action of the hopper limiting mechanism, the hopper is tilted and rotated to one side, and the material rolls out of the hopper and enters the mixer; there is no need to use manpower to carry the material, which saves time and effort, has a high feeding efficiency, occupies a small space, and is easy to operate.