The station, originally named Clarbeston, was opened by the South Wales Railway on 2 January 1854.

[3] The signal box west of the station now supervises not only the junction between the two routes but also both branches to their respective termini, all of the other boxes on both lines having been closed as part of a 1988 re-signalling scheme that saw control centralised here and colour light signals replace the surviving semaphores.

The usual service pattern is one train every two hours in each direction, westwards to Milford Haven and eastwards to Manchester Piccadilly via Swansea and Cardiff Central.

The branch line to/from Fishguard Harbour diverges here with six direct services each way – three morning, two evening, one night – calling at the station each day Monday to Saturday.

InterCity 125 services ran through Clarbeston Road to Milford Haven until the early 1990s, ceasing in 1994.