Polygonum cuspidatum powder is a vermicelli product of Polygonum cuspidatum (also known as sweet potato). Osmunda japonica is produced in hilly areas, and it is also cultivated in some plain areas of China. In places with low mountains, flat ground, mild climate, abundant rainfall, long frost-free period and four distinct seasons, it is more conducive to producing high-quality Osmunda japonica. Osmunda japonica powder is made through about four processes, and the finished product of Osmunda japonica powder is made by selecting high-quality Osmunda japonica, peeling, grinding, making strips and drying. Sweet potato starch has the characteristics of crystal clear, refreshing, strong elasticity, uniform strips and continuous cooking. It is a good raw material for hot pot, cold salad, fried rice noodles, soup, braised pork and other dishes.