Yonghong Village, Taipingying Township, Songtao County, Guizhou Province, is located at the eastern foot of Fanjing Mountain, at the junction of Sichuan, Hunan and Guizhou provinces on the northeast edge of Guizhou Province. It has beautiful scenery, mild climate, abundant rainfall, distinct seasons, forest vegetation, mountains and rivers and still retains the original ecological landscape. The local soil is fertile, mostly acidic red soil, and the terrain is relatively flat. The unique soil and natural conditions are very suitable for the cultivation of characteristic agricultural products with high nutritional and health care value.

Yonghong Village has built an original ecological production base of characteristic agricultural products of 3, mu, which mainly produces purple and blue anthocyanin characteristic agricultural products such as purple sweet potatoes, purple potatoes and blueberry berries. The production of crops all adopts bio-organic fertilizer and bio-pesticide, and no chemical fertilizer or chemical pesticide is applied. Pay attention to the balance of the original ecological system, and its products are safe, environmentally friendly and of high quality. In 29, 25 mu of purple sweet potato was planted in this village. Because of its good quality, good appearance, good taste and high nutritional value, the purple sweet potato was well received by consumers. The products were sold to Chongqing, Huaihua and Guiyang, and were called "violet" sweet potatoes by consumers. In 21, the village planted 1, mu of purple sweet potatoes, with a total output of 2, tons of fresh potatoes.

Yonghong Village in Taipingying Township was awarded the title of "China Nutrition and Health Industry Demonstration Zone" by the National Development and Reform Commission in 21, and was recognized as "National Demonstration Village with One Village and One Product" by the Ministry of Agriculture in 211.