Sanjiang Dong Autonomous County belongs to Liuzhou City, Guangxi Zhuang Autonomous Region, located in the northern part of Guangxi Zhuang Autonomous Region, at the junction of Hunan, Guangxi and Guizhou provinces (regions), belonging to subtropical Nanling humid climate zone and mountain valley climate zone. Sanjiang Dong Autonomous County has a total area of 2,454 square kilometers, bordering Longsheng County and Rongan County in the east, Rongshui County and congjiang county County in Guizhou Province in the west, Tongdao County in Hunan Province and Liping County in Guizhou Province in the north, and Rongan County and Rongshui County in the south. Guyi Town, the county seat, is 203km away from Liuzhou and 0/67km away from Guilin/KLOC.
The famous scenic spots in Sanjiang Dong Autonomous County are Shimenchong Natural Ecological Scenic Area, Chengyang Bazhai Scenic Area and Danzhou Scenic Area. Guiyang-Guangzhou high-speed railway passes through Sanjiang and has Sanjiang South Station, which was completed and opened to traffic on February 26th, 20 14. It takes only 3 hours, 5 hours, 1 hour and 5 hours from Sanjiang South to Guangzhou South and Guiyang respectively.