Its history started on 1 March 1886 when Frederick Broome, then Governor of Western Australia, turned the first sod.
Midland Junction was an aptly named locality and railway station, as it had the following services leaving from its platforms: It was in effect the point at which all rail services in the Western Australian network had to pass by – except for the South West line to Bunbury.
In the 1890s following the construction of the Eastern Railway second route, Midland Junction had regular metropolitan passenger services running through on to Chidlow and Mundaring until 1954.
Services ceased from the Mundaring loop or "first route" at that date, but the line was not closed by Parliament until 12 March 1965.
The old platform has been utilised by photographers and railfans to watch mainline traffic pass.