The North-Link Line (Chinese: 北迴線; pinyin: Běihuí Xiàn) is the central section of the Eastern Line of the Taiwan Railways Administration.

Ferry service between Keelung and Hualien was an overnight trip.

The line branched from Yilan line at Nan Sheng Hu in Su'ao, traveling through mountains and valleys with 91 tunnels and 16 bridges, and ended at a newly constructed Hualien Station.

The line was completed in 1979 and was almost immediately overloaded in passenger and freight services.

Despite Taiwan Railways Administration continued upgrading signals, tracks, and rolling stock of the line, the great demand could not be fulfilled.