Located in the southeastern part of Henan Province, Huangchuan County has a warm climate and abundant rainfall. It is located in the northern part of the subtropical zone and is a suitable habitat for the northward movement of tropical flowers and trees and the temperate vegetation. "Gwangju" volume 28 records: "The genus of wood has laurel, a hibiscus flower, there are three kinds of red, white and yellow." From the northwest of the ruins of the ancient city of Huangguo, there is a hilly ridge that stretches for dozens of kilometers. Since ancient times, osmanthus has been planted on a large scale. Every time in the golden autumn, the sweet-scented osmanthus blooms and the fragrance floats, so it is named "Guihualing". The Huangchuan people have a custom of playing "Osmanthus cake", "Osmanthus sugar" and "Osmanthus wine" on the holidays.

In the Tang Dynasty, Gwangju State had produced noodles. At that time, it was "selling in China, winning the Kyushu" and was called "Gwangju Kuiping". By the time of the Song Dynasty, the Gwangju state officials ordered the workers to take the face to their heads and tails, take them in the middle, and cut them into a length of about 20 cm. They were rolled into a circular shape with red and green paper, half a catty per tube, and served as gifts. To the court, Song Renzong after eating, praise: "Mei, Gwangju Gongmi"! Since then, Gwangju's refined tubular noodles are famous for its "Gongtian".