Regional rail services are operated by Deutsche Bahn AG and Erixx GmbH.

The station is located north of the Harzburg town centre at an altitude of approximately 328 metre above NN.

The platforms are connected by a concourse at the southeast end, this is bordered by the entrance building opened in 1905.

[5] Signals and points were controlled by mechanical interlockings, operated and monitored at the station entrance.

[6][7] Platform 1/2 is to be demolished and platforms 3/4 and 5/6 are to be shortened from 170 metres (previously 180)[8] and reduced to a height of 55 centimetres (previously 76)[8][9] On 13 November 1837, the Duchy of Brunswick concluded a treaty with the Kingdom of Hanover to establish a railway connection from Brunswick via Wolfenbüttel to Neustadt unter der Harzburg.[Anm.

The whole line to Brunswick was opened on 31 October 1841 and the ramp to Harzburg was converted to steam operation by 8 November 1843.

The nearby hoteliers, made a strong case for the closing of the gap between Ilsenburg and Harzburg, referring to the region's tourism.

The Landtag of Prussia approved the project in 1890, whereupon the responsible Royal Railway Division (Königliche Eisenbahndirektion, KED) of Magdeburg investigated different route options.

[12] Initially, a direct route via Abbenrode was planned, but the adjoining property owners did not want to sell their land.

However, as this would have unnecessarily extended the line and reduced the costs only slightly compared to the tunnel option and it was also rejected.

The facilities stretched west of the tracks and included a twin-track roundhouse, a water tower and a small workshop.

The signal box and the depot located at the freight yard were replaced by the KED Magdeburg with a new mechanical interlocking at its north end in the same year.

At that time, Deutsche Reichsbahn preferred to use the connection from Heudeber-Danstedt to Goslar via Wernigerode and Bad Harzburg for diverted traffic.

The foothills of the low mountain range were expected to provide sufficient protection against air raids, which did not prove true at the end of the war.

Through traffic from Bad Harzburg to the Soviet occupation zone was first interrupted with the invasion; in 1946, after agreement between the two occupying powers, a few isolated refugee trains crossed the demarcation line.

Deutsche Bundesbahn, which emerged from the Reichsbahn in 1949, abandoned passenger traffic to Eckertal on 21 May 1955; until 27 September 1958 buses still operated rail replacement services.

The remaining section was served by Deutsche Bundesbahn with two pairs of trains on working days from 1950.

Freight traffic to a sawmill in Eckertal continued for another two years, but had to be abandoned due to the track going out of gauge on the curves.

[18] The connections to the west and north, however, were expanded and in the summer of 1950, for example, there were express trains to Hanover and Düsseldorf and through coaches to Bonn and the Hook of Holland.

The closing of the gap would therefore be further north at Vienenburg, making possible a direct connection via Goslar, bypassing Bad Harzburg.

[27] Operation on this line and two other regional railway services from Bad Harzburg to Brunswick and Göttingen were taken over by Erixx from the timetable change on 12 December 2014, a subsidiary of Osthannoversche Eisenbahnen (OHE).