Abstract: Layered bed drying technology achieves fast and uniform drying results by distributing the material on multiple levels and properly heating and ventilating the material. In this paper, the physical characteristics of rice and the drying performance of the drying equipment were analyzed by combining theoretical analysis and experiment, and on this basis, CFD technology was used to explore the flow field distribution of the small layered bed dryer, and the drying effect of the small layered bed dryer was further clarified and the scheme was optimized. The results of this study can provide reference and guidance for the design and optimization of small layered bed dryers, and provide a certain reference for improving rice drying efficiency and product quality.