Jiansanjiang () is a Nongken agricultural colony, under the management of Jiansanjiang Branch. The area, consisting of 15 state farms, is situated in the eastern part of Heilongjiang province, China, across Fujin City, Tongjiang City, Fuyuan City, and Raohe County.农垦建三江管理局打造“千里党建示范带”纪实, 共产党员网, 2012-06-20建三江15个农场有限公司全部挂牌, 黑龙江日报, 2018-08-16 Population of the area is about 270,000.“中国绿色米都”----建三江, 北大荒建三江信息港, 2021-07-07 About 8 million tons of food are produced by the area every year.建三江在科技增产提质上下功夫 为中国饭碗里装上更多优质粮, Chinanews.com.cn, 2023-09-10
Administration Until year 2017, the government function of the area was performed by the , instead of by local governments. The government of Heilongjiang province pushed for changes that year, converting the Bureau into a purely economic corporation, with local governments taking up the role of governance including law enforcement. The Bureau was officially converted into a state owned enterprise in 2019北大荒改革又一重大突破，八大管理局整建制变为分公司, The Paper, 2019-07-02 with the government functions having already been gradually transferred to local governments.
Agriculture
Being an agricultural colony () under the management of the former , Jiansanjiang has a rich history of agriculture, and is known for having areas of chernozemic soil. The city is discussed in detail in academic papers on agriculture in China; notably, China Agricultural University has an experimental station looking at rice varieties in the city.
Jiansanjiang is known as China's green rice city, and its Honghe farm () was the first modernised farm in the whole of China, making use of agricultural drones and other technologies.
Detection camp
In 2014, it was reported that the local administration made use of its special legal status to set up "Legal detention centers" that are illegal in nature to target people associated with Falun Gong.建三江絕食記, 青石律師, 司改雜誌第101期, 2014-04-29 These facilities had previously been used for torture.向莉視角 /親歷建三江事件（一）去解救失蹤者的律師失蹤了, Radio Taiwan International, 2020-09-16 In addition, four human rights lawyers, Tang Jitian, Jiang Tianyong, Wang Cheng, and Zhang Junjie who provided legal assistance to these victims were also detained, tortured, and injured. This incident caused the facilities to be described as "black jails" in reports and media, and as "brainwashing classes" by local residents.Post Reeducation-Through-Labor "Abolition": Lawyers and Defenders Monitor Legal Reform Implementation--The Jiansanjiang Case, Human Rights in China, 2014-04-28China: Investigate Lawyers' Torture Claims, Close Black Jails, Human Rights Watch, 2014-04-07建三江被拘遭遇记, New York Times, 2014-04-11 These lawyers continue to be monitored by the Chinese government a decade after the incident."建三江事件"十周年 中国律师团倡议纪念, Radio Free Asia, 2024-03-13
Transportation
Jiansanjiang Shidi Airport was opened in October 2017. By road, Jiansanjiang connects to the G1011 via the S11 Jianji Expressway.
Jiansanjiang also connects to Harbin (via Jiamusi) and Fuyuan by rail.
Science
The asteroid 207723 Jiansanjiang is named after the city.
References