Yashiro Station is served by the Shinano Railway Line and is 59.9 kilometers from the starting point of the line at Karuizawa Station.

[1] The station consists of one ground-level island platform and one side platform serving three tracks, connected to the station building by a footbridge.

Yashiro Station opened on 15 August 1888.

[1] The Nagano Electric Railway Yashiro Line also served this station from 10 June 1922 to 31 March 2012.

[citation needed] In fiscal 2011, the station was used by an average of 4,464 passengers daily.