He studied at the Royal Danish Academy of Fine Arts and was at the same time in 1819–23 articled to the sculptor Nicolai Dajon.

[1] Christensen was already as a student commissioned to create a number of sculptural works for the Royal Danish Theatre and Christianshorg Palace.

These include kometmedaljen (1832) and medals commemorating Frederik VI's recovery and death (1839), the reformation anniversary (1836), the royal couple's silver wedding (front side, 1840), Crown Prince Frederick's wedding (front side, 1841), the 100-year anniversary of the Royal Danish Academy of Sciences (1842), Albert Thaer (1833), A. W. Hauch (1838) and Michael Nielsen (1844).

[2] Christensen was married to Oline Louise Bugge (22 January 1805 – 9 March 1878), a daughter of master joiner Ole B.

[1] Christensen is seen in Wilhelm Bendz's 1827 genre painting A sculptor working from live model studies (Danish National Gallery).

He has also been the subject of portrait paintings by Constantin Hansen (1831, Hirschsprung Collection) and J. V. Gertner (1836, Danish National Gallery).