The Arima Line (神戸電鉄有馬線 Kōbe Dentetsu Arima-sen?) is a commuter railway line in Kobe, Japan operated by Kobe Electric Railway. It connects central Kobe with its northern suburbs in Kita-ku and Arima Onsen.
The line is 22.5 kilometres (14.0 mi) long, extending from Minatogawa in Hyogo-ku to Arima Onsen in Kita-ku, although all trains continue past Minatogawa to Shinkaichi via the Kobe Rapid Transit Railway Namboku Line (Kobe Kosoku Line).
Service is divided at Arimaguchi, where most trains from Shinkaichi continue on the Sanda Line, with short-run trains operating between Arimaguchi and Arima Onsen, the line terminus.
The entire line opened in 1928, 1,067 mm (3 ft 6 in) gauge and electrified at 1500 VDC.
The Mitogawa - Arimaguchi section was duplicated between 1965 and 1966.
Arima Onsen station - The 12km line to Sanda on the Fukuchiyama Line was operated by the Arima Railway Co. from 1915 to 1943.
from Suzurandai
Local, Semi-express, Express (all), Rapid express (all) - to Ao on the Ao Line
from Arimaguchi
Local, Semi-express, Express (all), Special rapid express (all) - to Sanda on the Sanda Line