The invention discloses a product positioning structure. A product is provided with a material handle and side edges. The positioning structure comprises a support, a first air cylinder, a connecting bearing plate, two second air cylinders, two clamping pieces, third air cylinders and pushing pieces. The support is erected on a conveyor belt, and the product is conveyed by the conveyor belt. The first air cylinder is fixed to the support and provided with a first movable end, and the first movable end moves in the vertical direction. One end of the connecting bearing plate is fixed to the first movable end, and the other end of the connecting bearing plate is provided with two fixing plates. The two second air cylinders are fixed to the upper portions of the fixing plates in a one-to-one corresponding mode, and the second air cylinders are provided with second movable ends correspondingly. One ends of the two clamping pieces are fixed to the second movable ends in a one-to-one corresponding mode, and the other ends of the two clamping pieces are provided with clamping parts downwards extending out and used for clamping the material handle. The third air cylinders are fixed to the lower portions of the fixing plates and provided with third movable ends. One ends of the pushing pieces are fixed to the third movable ends. Accurate positioning of the product can be achieved.