 The station was opened in 1855 as part of the Dortmund–Soest railway built by the Bergisch-Märkische Railway Company (BME) and equipped with an impressive station building, which was sold for non-rail purposes in 2005.In 1866, the BME opened the line from Unna to Hamm to connect with the Cologne-Minden trunk line.Later the line was extended from Unna to Hagen, making Unna station into a railway junction of regional importance.