Sidse Werner studied at the school for architecture and industrial design in Copenhagen. For some years she worked as assistant in the drawing office of Nanna Ditzel.
In 1969 she received the Danish National Bank’s Jubilee foundation study legacy to study plastic production in the USA. From 1970 she had her own drawing office. Sidse Werner has exhibited in London, Paris, New York, San Francisco, Cologne, Frankfurt, Hannover, Tokyo, Stockholm and Milan.