The invention discloses a material mixing device for quartz production in the technical field of quartz production material mixing. The device comprises a bottom plate, a top plate, a box cover and astirring barrel, wherein a left supporting plate and a right supporting plate are perpendicularly welded to the top of the bottom plate. The bottom of the top plate is connected with mixing shafts; aplurality of mixing blades are arranged on the outer wall of the mixing shaft; a cylinder is fixedly connected to the left side wall of the left supporting plate; a first motor is mounted at the top of the top plate; the output end of the first motor is connected with a screw rod screwed with the inner cavity of the cylinder; a transverse rod is horizontally connected between the left supporting plate and the right supporting plate, the left portion of the transverse rod is in left-handed rotation connection with a left-handed rotation moving seat sliding left and right with the bottom plate,the right portion of the transverse rod is in right-handed rotation connection with a right-handed rotation moving seat sliding left and right with the bottom plate, and the left-handed rotation moving seat and the right-handed rotation moving seat are connected with the stirring barrel through symmetrical middle rods. According to the invention, the mixing effect and the mixing efficiency are improved, the cost is reduced, and the mixing shaft, the mixing blades and the mixing barrel are convenient to clean.