Laodaohe Subdistrict () is a subdistrict in Kaifu District of Changsha, Hunan, China. As of the 2023 census it had a population of 43,000 and an area of .
According to legend, during the Three Kingdoms period, Guan Yu fought in Changsha, while crossing the river by boat, his broadsword accidentally fell into the river, his deputy general Zhou Cang picked up the broadsword, and the river where the broadsword was pulled out was called "Laodao River" (; "Lao" means pick up and "Dao" means Guan Yu's broadsword).
As of 2023, the subdistrict is divided into three communities and three villages:
The predecessor of Laodaohe Subdistrict was Gaoling Township () and belonged to Beishan District of Changsha County. In 1995, Gaoling Township and Shaping Township () merged to form Laodaohe Town (). It came under the jurisdiction of Kaifu District in 1996. In 2013, Laodaohe Town split into two subdistricts: Laodaohe Subdistrict and Shaping Subdistrict.
Laodaohe Subdistrict is located on the north of Changsha. It is surrounded by Xiufeng Subdistrict and Wangcheng District on the northwest, Beishan Town on the southeast, and Furong District on the south.
The Laodao River and Liuyang River flow through the subdistrict.
The local economy is primarily based upon commerce.
Tielu Temple is a Buddhist temple in the subdistrict, and is also a well known tourist spot.
The serves the town.