Big Cave Township, belonging to Wuning County, Jiujiang City, Jiangxi Province, is located in the northwestern part of Wuning County, bordering Quankou Township in the east, Henglu Township, Songxi Township and Futian Township in the south, and Tongshan County Honggang Township and Longgang Township of Yangxin County in the northwest of Hubei Province. The administrative area covers a total area of 111.68 square kilometers. As of the end of 2019, Big Cave Township has a household population of 9,783.
In the old days, the territory belonged to Shengren Township Xindu; in 1984, it was reorganized into Big Cave Township. As of June 2020, there are 5 administrative villages under the jurisdiction of Big Cave Township. The People's Government of the township is located in Yanghu Duan.
From January to November 2020, the fiscal and tax revenue of Dadong Township completed 29.218 million yuan, 74.12% of the task.
