云南省位于中国的西南 ,共辖 16个地区 (州、市 ,下同 ) 12 8个县 (区、市 ,下同 ) ,其中有 8个地区2 5个边境县 ,边境线全长 4 0 6 0ｋｍ ,与缅甸、越南、老挝三国接壤 ,有国家级口岸 2 0个。多数边境地段无天然屏障 ,少数民族分布在边境线两侧 ,生活习性相近 ,边民间相互通婚 Yunnan Province is located in the southwest of China and has jurisdiction over 12 counties (districts, cities, the same below) in 16 regions (prefectures, cities, the same below), of which 25 border regions are in 8 regions and the total length of the border line is 40 6 0km, bordering Myanmar, Vietnam and Laos, with 20 state-level ports. Most border areas without a natural barrier, ethnic minorities located on both sides of the border line, similar to the way of life, border civil intermarriage