The utility model discloses a rice carrying and stacking mechanism, belongs to the technical field of rice stacking, and aims at solving the problem that in the prior art, due to the fact that a tray is in an exposed state, when stacking is high, sideslip is prone to occurring, and rice topples over as a whole. Comprising a bearing plate, limiting mechanisms, a tray and clamping blocks, the tray is located on the upper surface of the bearing plate, and the limiting mechanisms are arranged on the two sides of the tray; clamping blocks are arranged on the two faces, adjacent to the limiting mechanism, of the bearing plate correspondingly, the clamping blocks and the tray are clamped and fixed, two oppositely-distributed moving grooves are horizontally formed in the upper surface of the bearing plate, and the limiting mechanism and the moving grooves are installed correspondingly; the limiting mechanism comprises a limiting plate, an inner sliding plate and a movable plate, and the movable plate is arranged above the limiting plate. According to the rice carrying and stacking mechanism, rice can be limited when the rice is stacked, the rice is stacked in the two limiting mechanisms, the situation that the rice topples over in the stacking process is effectively avoided, and the stacking safety is improved.