Keikyu Daishi Line services are operated only by four-car electric multiple unit (EMU) trains, stopping at all stations between Keikyu Kawasaki and Kojimashinden. During the weekday off-peak, trains run at 10-minute intervals, increased to 5-minute intervals during the morning and evening peaks.
The line was opened on 21 January 1899 by the Daishi Electric Railway (大師電気鉄道), as a standard gauge line electrified at 600 V DC, between Kawasaki Station (later renamed Rokugōbashi Station (六郷橋駅), which closed in 1949) and Daishi Station (later renamed Kawasaki-Daishi Station).[3] The company was renamed Keihin Electric Railway (京浜電気鉄道) on 25 April 1899.[3] The line was double-tracked over its entire length from 29 November the same year,[3] and extended from Rokugōbashi Station to the present-day Keikyu Kawasaki Station on 1 September 1902.[3]
The line was extended to Sakuramoto in 1945, and the overhead line voltage was raised from the original 600 V DC to 1,500 V DC on 16 March 1951 except for the Shiohama to Sakuramoto section, which was transferred to the Kawasaki Streetcar Co. and operated as a tramway.[3]
Originally, the line was built to transport the visitors of Kawasaki Daishi buddhist temple. But later, factory workers increased, as the east side of the temple became an industrial zone.[citation needed]
^京急600形が大師線内で運用される [Keikyu 600 series operated on Daishi Line]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 13 June 2016. Archived from the original on 13 June 2016. Retrieved 13 June 2016.
^京急 新1000形が大師線運用に [Keikyu New 1000 series operated on Daishi Line]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 9 January 2008. Archived from the original on 25 October 2017. Retrieved 25 October 2017.
^ abcdeTerada, Hirokazu (19 January 2013). データブック日本の私鉄 [Databook: Japan's Private Railways]. Japan: Neko Publishing. p. 232. ISBN978-4-7770-1336-4.