This paper analyzes the development trends and existing problems of the “rice-plus” grain-economy synergistic model in Yunnan, and proposes future development strategies focusing on breeding specialized varieties, researching synergistic models, and developing high-yield, high-efficiency production technologies. Strengthening the research and application of the “rice+” model holds significant importance for effectively addressing the numerous challenges faced by low-latitude plateau regions, with Yunnan as a representative example. These challenges include prominent conflicts over land use between grain crops and cash crops, immense pressure on grain production, and relatively low comprehensive returns. By promoting the “rice+” model, it is possible to drive the coordinated development of grain crops and cash crops, thereby playing a leading role in safeguarding food security and enhancing the quality of cultivated land.