menghaixianIntroduction：Introduction to Bohai: Menghai County, in the southwest of Yunnan Province, west of Xishuangbanna Dai Autonomous Prefecture. It is connected to Jinghong City in the east, Simao City in the northeast, close to the county in the northwest, and Myanmar in the west and south. The border line is 146.6 kilometers long. The east-west distance is 77 kilometers, the north-south distance is 115 kilometers, 5511 square kilometers, of which the mountain area accounts for 93.45%, the dam area accounts for 6.55%, the highest altitude is 2429 meters, and the lowest elevation is 535 meters. 331,850 people (2010), the government resident in Bohai Town. Menghai County is the hometown of “Pu'er Tea”, which is famous both at home and abroad, and the earliest place for Chinese tea production. It has a wild “Tea Tree King” 1700 years ago and a group of ancient tea trees. The four seasons are suitable for rice growth and are rich in high-quality rice. Since ancient times, it has been known as the “Guangnan Granary” and is a national grain production base and sugar base. [2-4]