The train services from Kaohsiung to Taipei include the Taiwan High-Speed Rail (THSR) and the conventional train operated by Taiwan Railways Administration (TRA). The THSR is the most efficient option, reaching speeds of up to 300 km/h (186 mph), and completing the journey in approximately 1 hour and 45 minutes. This route features limited stops, primarily at major stations such as Tainan and Taichung, providing a swift transit for travelers.
In contrast, the TRA conventional train takes longer, with journey times ranging from 3 to 4 hours, depending on the service type—express or local. The express services, known as the Puyuma and Tze-Chiang trains, still offer reasonable travel times but include more stops.
Both services offer comfortable seating and onboard facilities, but if speed is a priority, the THSR stands out as the fastest option. Travelers may choose TRA trains for a more scenic route, enjoying various landscapes along the journey between these two cities.