Ena Station is served by the Chūō Main Line, and is located 328.6 kilometers from the official starting point of the line at and 68.3 kilometers from. It is also a terminal station for the Akechi Line, and is located 25.1 kilometers from the opposing terminus of the line at.
The station opened on 21 December 1902 as Ōi Station. The Akechi Line began operations from 24 May 1933. The station was renamed Ena Station from 1 November 1963. On 1 April 1987, it became part of JR Central.
Passenger statistics
In fiscal 2016, the station was used by an average of 3,497 passengers daily.