The invention discloses an experiment device for researching a rake teeth design. The experiment device comprises a stove plate, a driving assembly of the stove plate, and rake teeth mounted on a rake teeth truss and over the stove plate; and the experiment device is characterized in that the stove plate comprises a sector-shaped disk whose radian ranges from 90 to 120 degree, one side of the sector-shaped disk is provided with a sector-shaped extension platform, the circular center of the sector-shaped extension platform is overlapped with that of the sector-shaped disk, and the radius of the sector-shaped extension platform is 1/3 to 1/2 that of the sector-shaped disk. The experiment device is low in experiment cost, low in errors, small in equipment occupation area, high in reliability, simple in operation, time-saving and labor-saving.