29 Line (simplified Chinese: 北京地铁西郊线; traditional Chinese: 北京地鐵西郊線; pinyin: běijīng dìtiě xījiāo xiàn) is a light rail line in Haidian District of Beijing.

It runs west and north from Bagou on Line 10 to the Xiangshan - a total length of 8.8 km (5.47 mi).

The line uses 31 low-floor 5-segment Hitachi Sirio trams built on license by CRRC Dalian.

On 1 January 2018, tram XJ003 derailed after a malfunction when departing from Fragrant Hills station at 2:36 PM with no passengers on board.

[13] The involved set XJ003 was taken out of service since the incident and stored in the Bagou Depot.