Dacai Township () is a township in Huanjiang Maonan Autonomous County, Guangxi, China. As of the 2019 census it had a population of 13,440 and an area of .
As of 2021, the township is divided into one community and six villages:
The area used to be in the territory of Tang Empire (618âÂÂ907). In 1075, in the ruling of Emperor Shenzong of Song dynasty (907âÂÂ1279), it was merged into Si'en County ().
In 1933 during the Republic of China, Tianshi Township () was set up.
In 1958, the "Dacai Red Flag People's Commune" () was founded and one year later renamed Chengguan People's Commune" (). In 1962, its name was changed to Chengguan District (). It was incorporated as a township in 1984.
The township lies at the eastern of Huanjiang Maonan Autonomous County, bordering Si'en Town to the west, Da'an Township to the north, and Yizhou District to the east and south.
The highest point in the township is Dawang Mountain (), which, at above sea level.
The township is in the subtropical monsoon climate zone, with an average annual temperature of , total annual rainfall of , a frost-free period of 329 days and annual average sunshine hours in 1244.8 hours.
The local economy is primarily based upon agriculture. Significant crops include rice and corn. Sugarcane is one of the important economic crops in the region.
The 2019 census showed the township's population to be 13,440, an increase of 5.1% from the 2011 census.
The Provincial Highway S205 passes across the southwestern township.
Longjiao Temple () is a Buddhist temple in the township.