捷運新莊線全線包括臺北市段、新北市段及新莊機廠。其中臺北市段忠孝新生站至大橋頭站等6個車站已於99年11月3日完工通車（東門站預定101年6月完工），新北市段台北橋站至迴龍站等9個車站目前全面趕工，預計101年3月局部通車至輔大站，俟新莊機廠完成後全線通車。 相信未來經由新莊線全線完工通車後，除緊密三重、新莊區之優質聯外交通規劃，「一高、二快、三捷運」的交通運輸路網，結合中山高、東西向快速道路，形成大臺北都會區新核心，並聯結臺北東區、新店、中永和等地區，擴大生活版圖外，利用捷運土地聯合開發，將帶動具地方特色的傳統廟宇、名勝古蹟與觀光事業等利多商機，促進地方經濟繁榮，並提昇地方文化氣息，提昇生活品質。

Construction of the Xinzhuang line covers the Taipei City section, New Taipei City section, and Xinzhuang Depot, of which part of the Taipei City section—from Zhongxiao Xinsheng to Daqiaotou totaling six stations—began commercial service on November 3, 2010. In addition, Dongmen Station is scheduled for completion in June 2012. Currently construction of the New Taipei City section including nine stations from Taipei Bridge to Huilong is underway and partial service up to Fu Jen University Station is scheduled to begin in March 2012. The entire line will not open until the completion of Xinzhuang Depot. When completed in the near future, the entire Xinzhuang line will not only provide convenient MRT service in Sanchong and Xinzhuang districts, but will also be coupled with National Highway No. 1 and East-West Expressway to become an optimal transportation network that connects Taipei’s eastern shopping and entertainment district, Xindian District, and Zhonghe and Yonghe districts into a Greater Taipei area. In addition, through integrated development, local features such traditional temples, famous scenic and historic will be promoted to help enhance economic prosperity, cultural spirit, and quality of life.