The is a private railway line operated by Keikyà « in Japan. Keikyu Main Line trains from and in Tokyo connect to the Miura Peninsula on the Keikyà « Kurihama Line.
Three different types of service operate on the line, including all-stations "Local" trains, with through-running to and from the Keikyà « Main Line. All services except Morning Wing services stop at all stations within the Keikyà « Kurihama Line.
All stations are located in Kanagawa Prefecture.
The section from Horinouchi to Kurihama (present-day Keikyu Kurihama) opened on 1 December 1942. The line was extended to Nobi on 1 November 1963, and the Keikyu factory at Kurihama opened at the same time. The line was further extended to Tsukuihama on 27 March 1966, and to Miurakaigan on 7 July 1966.
Direct limited express services between Miurakaigan and began on 31 December 1969. ATS signalling was introduced on all Keikyu Lines on 12 November 1970. The final section from Miurakaigan to Misakiguchi opened on 26 April 1975.
From the start of the revised weekday timetable on 7 December 2015, two Morning Wing limited-stop commuter services from Miurakaigan to Shinagawa and Sengakuji in Tokyo were introduced. These stop at Yokosuka-chuo, Kanazawa-Bunko, and Kamià Âoka en route.