Elżbieta Sikora studied sound engineering at the Chopin University of Music in Warsaw, and then electroacoustic music with Pierre Schaeffer and François Bayle at GRM in Paris from 1978 to 1980. Upon her return to Warsaw, she undertook study of composition with Tadeusz Baird and Zbigniew Rudzinski.
She taught electroacoustic music at the Angoulême Conservatory from 1985 to 2008 and was the director of the Musica Electronica Nova Festival in Wrocławfrom 2009 to 2017.
Her catalogue comprises some sixty electroacoustic and instrumental works, including operas, ballets, and orchestral, chamber and solo pieces. Her music has been performed in several countries in Europe and in the United States, notably at festivals including Avignon, Dresdner Musikfestpiele, Warsaw Autumn, Fylkongen in Stockholm, Musica Electronica Nova, Présences, and the Bourges Festival of Electroaucoustic Music. She has received commissions from Radio France, IRCAM, GRM, Muse en Circuit, the Monte Carlo Ballet, and the French and Polish Ministries of Culture.