Some of Mario Milizia most significant solo exhibitions have been held at Viasaterna, Milan, 2017, Marsèlleria, Milan, 2014; Jousse Entreprise, Paris, 2009, 2003, 2001; at the Galerie Edward Mitterrand, Geneva, 2002; at Niitsu Art Forum, Niitsu, Japan, 2000; at Neon, Bologna, 1998; and Soundtrack Without Film, at Viafarini, Milan, 1996.

He has also participated in various group shows, including: Picture Perfect, curated by Fantom, Viasaterna, Milano, 2015, Nativity curated by Michele D’Aurizio, Grand Century, New York, 2015, Il Delitto Quasi Perfetto, Pac Milano, 2014 curated by Cristina Ricupero; If I Was John Armleder, Geneve 2013, curated by Luca Cerizza, Playlist, Palais de Tokyo, Paris, 2004, The World, Speak For Gallery, Tokyo and Jousse Entreprise, Paris, 2003; Design et Activisme, Speak For Gallery, Tokyo, 2001; Expander 1.0, curated by Pierre Bal Blanc and Laurent Godin, in collaboration with Blocnotes, Galerie Jousse Seguin, Paris, 1999; Seamless, curated by Luca Cerizza, De Appel Foundation, Amsterdam, 1998; Jingle Bells, curated by Uwe Schwarzer, Massimo De Carlo, Milan, 1997; Chi o che cosa a seconda dei casi, Neon, Bologna, 1997; Ne Dites Pas Non, curated by John Armleder, MAMCO, Geneva, 1997; 504, Zentrum für Kunst, Medien und Design, Braunschweig, 1997; Aperto ’97, Trevi Flash Art Museum, Trevi, 1997; 1° Premio Trevi Flash Art Museum, Trevi Flash Art Museum, Trevi, 1996.