# Line 3 (Beijing Subway)

Line 3 of the Beijing Subway (Chinese: 北京地铁3号线; pinyin: běijīng dìtiě sān hàoxiàn) is a rapid transit line in Beijing, China. It opened on December 15, 2024. It is colored rose red in system maps.

## Description
### Phase 1

Phase 1 of Line 3 is 14.7 km (9.1 mi) with 10 stations. It is fully underground. Due to unstable planning east of Dongbabei station, line 3 will only open between Dongsi Shitiao and Dongbabei. It opened on December 15, 2024.

### Phase 1 East extension

Phase 1 East extension from Dongbabei to Caogezhuangbei have been approved by NDRC in 2015. The extension will be 6.4 km in length with 5 stations. It will be fully underground.

## Stations

| Station Name | Station Name | Connections | Nearby Bus Stops | Distance km | Distance km | Location |
| English | Chinese | Connections | Nearby Bus Stops | Distance km | Distance km | Location |
| Dongsi Shitiao | 东四十条 | 2 | 3 4 42 44 75 113 115 118 142 200 406 431 通医专线3 夜3 夜20 夜34 | 0.000 | 0.000 | Dongcheng |
| Workers' Stadium | 工人体育场 | 17 | 3 4 43 110 113 115 117 118 120 403 406 431 夜3 夜6 夜24 夜34 | 1.269 | 1.269 | Chaoyang |
| Tuanjiehu | 团结湖 | 10 | 4 43 95 113 115 117 302 405 406 431 499 650 672 675 687 690 快速直达专线78 快速直达专线195 快速直达专线196 夜3 夜30 夜34 专5 专114 专142 | 0.934 | 2.203 | Chaoyang |
| Chaoyang Park | 朝阳公园 | 14 | 31 117 135 302 406 412 419 431 499 650 672 675 682 690 973 988 快速直达专线78 夜3 夜25 专142 | 1.757 | 3.960 | Chaoyang |
| Shifoying | 石佛营 | | 140 406 408 412 431 451 486 499 640 650 672 675 989 991 夜3 夜25 专142 | 1.669 | 5.629 | Chaoyang |
| Chaoyang railway station | 朝阳站 | IFP | 413 418区 911 夜13 专194 专195 | 1.218 | 6.847 | Chaoyang |
| Yaojiayuan | 姚家园 | | 专50 | 2.093 | 8.940 | Chaoyang |
| Dongbanan | 东坝南 | | 350 406 553 571 640 650 989 | 2.362 | 11.302 | Chaoyang |
| Dongba | 东坝 | | 350 406 553 571 640 659 847 973 989 快速直达专线69 快速直达专线96 | 1.544 | 12.846 | Chaoyang |
| Dongbabei | 东坝北 | 12 | 592 | 1.621 | 14.467 | Chaoyang |

## Rolling stock

Line 3 will initially use 4-car Type A rolling stock but platforms are designed to support expansion to 8-car trains.

## History

Line 3's route has undergone substantial changes on the planners' drawing board. In the late 1990s, one draft of the subway plan showed Line 3 running from Xiaomeichang to Cuigezhuang. Half of that route was then folded into Line 6. In 2010 and 2011, Line 3 was mentioned in the development plans of other subway lines.
By January 2012, the Line 3's western section was slated to run east from Tiancun station in Haidian District under Fushi Road to Fuchengmen station. On March 15, 2012, Line 3 was reportedly planned to run from Tiancun station to the eastern suburbs of Beijing in Gaoxinzhuang and Pingfang and to be built by 2020.
In June 2012, Beijing media reported the station plan of Line 3.
In January 2013, subway planners were examining whether to extend the Line 3 through the city centre given the concentration of historic relics in the area. In January 2014, it was reported that Line 3 will have 27 stations, with up to 16 transfer stations, including Ganjiakou station on Line 16 and Zhangzizhonglu on Line 5. The station plan for Ganjiakou had been released in 2013 by Beijing Municipal Commission of Urban Planning, which depicted the Line 3 platform built over that of Line 16. In February 2014, an official was quoted as saying that "Line 3 would run along Di'anmen Street, not Jingshan Front Street, with paralleling from Ping'anli to Nanluoguxiang."
On September 14, 2015, Line 3 (from Tiancun to Caogezhuangbei) was approved by NDRC. It will be 37.4 km in length with 27 stations. On April 19, 2016, the first phase of Line 3 started construction.
On May 1, 2024, the Beijing Municipal Commission of Planning and Natural Resources adopted station names of line 3 phase 1. On June 15, 2024, test run of line 3 has started.
On September 29, 2024, Beijing Infrastructure Investment (BII) company announced the planning scheme of line 3 eastern extension, a 6.4 km underground section with 5 new stations, but of which the potential termini Caogezhuangbei will only have reservation places for future plans. Once eastern extension completed, it will connect with line 20 (R4) at Guanzhuangluxikou, and line M101 at Gaoxinzhuang.