西鉄貝塚線を中心に掲載しています。
Kaiduka Line is the only Nishitetsu Line with 1067 mm gauge. Starting from Kaiduka, the terminal of the Fukuoka Subway, the line runs alongside JR Kagoshima Line to Nishitetsu Shingu. Series 600 and 313 were converted from Omuta Line trains. Trains run every 10 minutes in the morning and every 15 minutes in the daytime.