She was born in Osen as a daughter of Fredrik Christian Paasche and Pauline Sivertsdatter Vaagen. Together with book printer Edolf Aasen (1877–1969) she had the son Arne Paasche Aasen, a well-known poet.
She hailed from Steinkjer, and was a member of Trondhjem city council from 1908 to 1911. She was the first female council member in Norway's third largest city. She then moved to Kristiania and was a secretary in Norges Socialdemokratiske Ungdomsforbund from 1912 to 1914. She also worked in the newspaper Direkte Aktion.
Politically, she was a board member of Kristiania Labour Party, and a deputy board member of the central board. In 1920, she was the only female Norwegian delegate to the Second Comintern Congress. Here she died at the airport when she was hit by an airplane propeller. She was buried in the Kremlin Wall Necropolis; as the only Norwegian woman buried here.
- Stene, Morten (ed.). "Aasen, Augusta". Steinkjerleksikonet (in Norwegian). Steinkjer. Retrieved 9 September 2010.
- Henriksen, Trond. "Arne Paasche Aasen". In Helle, Knut. Norsk biografisk leksikon (in Norwegian). Oslo: Kunnskapsforlaget. Retrieved 9 September 2010.
- Stene, Morten (ed.). "Aasen, Edolf". Steinkjerleksikonet (in Norwegian). Steinkjer. Retrieved 9 September 2010.
- Friis, Jakob; Hegna, Trond; Juel, Dagfin, eds. (1936). "Åsen, Augusta". Arbeidernes Leksikon (in Norwegian). 6. Oslo: Arbeidermagasinets Forlag. pp. 1144–1145.
- Maurseth, Per (1987). Gjennom kriser til makt 1920-1935. Volume three of Arbeiderbevegelsens historie i Norge (in Norwegian). Oslo: Tiden. p. 140. ISBN 82-10-02753-0.
- Maurseth, 1987: p. 139
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