In 1865, the former countries of Baden and Württemberg agreed to connect their rail networks in the south.

Johannes Bürk, a watch manufacturer and a member of parliament from Schwenningen had a decisive influence on the line.

[3] As only a small part of the line ran through Baden in the Villingen area, it was built and operated solely by the Royal Württemberg State Railways (Königlich Württembergischen Staats-Eisenbahnen) under the terms of a treaty of 18 February 1865.

Services of the Ringzug of the Hohenzollerische Landesbahn run on the line between Villingen and Trossingen at hourly intervals on weekdays.

In addition, Regional-Express services are operated by Deutsche Bahn every two hours on the Neustadt (Schwarzw)–Rottweil route.