Haihongguo is a small fruit tree similar to hawthorn produced in Qixian County around Hequ. It has the advantages of large crown, deep root system, drought and cold tolerance, barren tolerance, less pests and diseases, convenient management, strong adaptability and high fruit yield. According to Hequ County Records, it has been planted for more than 800 years, and the existing fruit trees are more than 200 years old, with bright color, sweet and sour taste and rich nutrition. Honghong fruit is a rare fruit in China, which mainly contains calcium, iron, zinc, selenium, total flavonoids and other 18 trace elements beneficial to human health. Therefore, Hequ locals call it "longevity fruit" and "Calcium Fruit". The production cycle of sea red fruit is long and the output is large, which provides sufficient cheap and good raw materials for deep processing of beverages. Haihong fruit tree has white flowers and pink or yellowish fruit. The fruit is like a heart-shaped stone, bright red and beautiful, sweet and sour. It can be eaten fresh and processed into dried fruit, drunken fruit, cortex moutan, candied haws, sauce, wine, vinegar, canned food, drinks, etc. These are the specialties of Hequ.