Wendeng sweet potatoes are mostly planted in hilly areas with sandy loam, abundant sunshine, good ventilation and fast drainage. The produced sweet potato has uniform head, smooth skin, bright color, less gluten, more noodles, moderate sugar content, rich starch and good taste.

Wendeng sweet potato is rich in starch, sugar, vitamins, inorganic salts and carotene. Sweet potato is high in calories but does not contain fat. Dehydroandrosterone contained in it has the functions of losing weight, anti-aging and anti-cancer, and is a good health food. At present, the planting area of Wendeng sweet potato has been stable at about 12000 hectares, and the main cultivated varieties are Hongdong, Gaoyou and processed sweet potato above 10. Most of these sweet potatoes are used for deep processing, such as sweet potato starch, sweet potato vermicelli, sweet potato juice, sweet potato slices and baked fresh sweet potatoes.