Abstract: Dehong Prefecture in Yunnan Province is a region with a south Asian tropical monsoon climate, and is the only grain transfer prefecture in Yunnan Province. It is of great significance to improve the level of grain drying mechanization in Dehong Prefecture to reduce the rate of grain loss, achieve high yield and harvest and food security. This paper combined the current development status of grain mechanized drying in Dehong Prefecture, summarizes and analyzes the current demand and shortage of agricultural machinery drying equipment in the field of grain mechanized drying in Dehong Prefecture, comprehensively analyzed and studied the development measures and directions of grain mechanized drying, and proposed countermeasures and suggestions for weak links and development trends, in order to provide reference for the development of grain mechanized drying.