作品の形態は、二つの対立した相互作用に基づくという持論を掲げたこともあり、これに啓発されて作曲されたのが篠原眞の「タンダンス」である。作品は、12平均律にとどまらず「チェロソロのためのRacine 19e de 8/4」では19平均律が使われるなど、柔軟な作風であった。最も知名度の高い作品は、観客が筋を決定する「あなたのファウスト」だが、それ以外のジャンル(Seize Paysages planétaires)にも力作がある。
Sept Versets des Psaumes de la Pénitence for four vocal soloists or mixed choir (1950)
Trois Chants sacrés for soprano and string trio (1951)
Prospection for three pianos tuned in sixths of a tone (1952–53)
Séismogrammes electronic music (1954)
Symphonies à 15 Solistes (1954–55)
Quintette à la memoire d'Anton Webern for clarinet, bass clarinet, violin, cello, and piano (1955)
Scambi electronic music (1957)
Mobile for two pianos (1957–58)
Rimes pour différentes sources sonores for orchestra and tape (1958)
Madrigal I for clarinet (1958)
Ode for string quartet (1960–61)
Madrigal II for four early instruments (flute, violin, viola da gamba, harpsichord) (1961)
Trois Visages de Liège electronic music (1961)
Caractères for piano (1961)
Madrigal III for clarinet, violin, cello, 2 percussionists, and piano (1962)
Votre Faust (1960–68), opera for five actors, four singers, thirteen instruments, and electronic music, libretto by Michel Butor. Several "satellite" works are related to this opera:
Miroir de Votre Faust (Caractères II) for solo piano and (optional) soprano (1964–65)
Jeu de Miroirs de Votre Faust for piano, soprano and tape (1964–65)
Echos de Votre Faust for mezzo-soprano, flute, cello, and piano (1961–69)
Les Ruines de Jéruzona for mixed choir and "rhythm section" (1978)
La Passion selon Guignol for amplified vocal quartet and orchestra (1981)
Parade de Votre Faust for orchestra (1974)
Aiguillages au carrefour des immortels for 16 or 17 instruments (2002)
Il sogno di Leporello: Parade 2 (de Votre Faust) for orchestra (2005)
Apostrophe et six Réflexions for piano (1964–66)
Phonèmes pour Cathy for mezzo-soprano solo (1966)
Couleurs croisées for large orchestra (1967)
Mnémosyne monody solo voice or instrument, or unison choir (1968)
Mnémosyne II for variable media (1969)
Les Éphémérides d'Icare 2 for a soloist, three-part concertino, and four instrumental quartets (1970)
Crosses of Crossed Colors for vocal soloist, two to five pianos, six tape-recorder operators, two turntablists, and two radio operators (1970)
Paraboles-Mix electronic music (1972)
Vue sur les Jardins interdits for saxophone quartet (1973)
Die Erprobung des Petrus Hebraïcus chamber opera in three acts, libretto by Léo Wintgens after Michel Butor (1974). Several "satellite" works are related to this opera:
Chroniques berlinoises for piano and string quartet with baritone ad lib. (1975)
Chroniques illustrées for large orchestra with baritone ad lib. (1976)
Ballade berlinoise for piano solo (1977)
Humeurs du Futur quotidien for two reciters and chamber orchestra (1978)
Pédigrée for female voice and seven instruments (1980)
Chroniques canines, for two pianos with soprano voice ad lib. (1984)
Canines for voice and piano (1980)
Flexions IV for viola solo (1980)
La Seconde Apothéose de Rameau for 21 instruments (1981)
Chroniques canines for two pianos with soprano ad lib (1984)
Tales and Songs from the Bible of Hell four singers with real-time electronic transformation and pre-recorded 4 track tape (1979)
La Passion selon Guignol for amplified vocal quartet and orchestra (1981)
La Paganania for solo violin (1982)
La Paganania seconda for solo cello (1982)
Traverser la Forêt (1987)
Déclarations d'Orage for reciter, soprano, baritone, three improvising instruments (alto saxophone, tuba, synthesizer), large orchestra and tape (1988–89)
At Moonlight, Dowland's Shadow passes along Ginkaku-Ji for shakuhachi, shamisen, and koto (1989)
Leçons d'Enfer music theatre for 2 actors, 3 singers, 7 instruments, tape, and live electronics; texts by Arthur Rimbaud and Michel Butor (1990–91)
Dichterliebesreigentraum for soprano, baritone, two solo pianos, choir and orchestra (1992–93)
Aquarius-Mémorial (in memoriam Karel Goeyvaerts)
Les Litanies d'Icare for piano (1994)
Danseurs Gnidiens cherchant la Perle clémentine for chamber orchestra (1998)
Les Fouilles de Jéruzona for orchestra (1995)
Icare au Jardin du Verseau for piano and chamber orchestra (1999)
La Guirlande de Pierre for soprano, baritone and piano (1997)
Navigations for harp (2000)
Seize Paysages planétaires ethno-electroacoustical music (2000)
Les Icare africains for solo voices, ad lib. choir, and orchestra (2002)
Stèle à la mémoire de Pierre Froidebise for solo clarinet (2009), unfinished at the composer's death, completed and premiered by Jean-Pierre Peuvion
Bartholomée, Pierre. 2009. "Henri Pousseur ou l'invention intransigeate". Musiques Nouvelles, no. 3:67–71. Online reprint, 15 November 2012 (accessed 17 April 2015).
Decroupet, Pascal. 2009. "Pousseur, Henri (Léon Marie Thérèse)". Grove Music Online (Accessed 30 August 2012).
Machart, Renaud. 2009. "Henri Pousseur, compositeur". Le Monde (10 March).
Pousseur, Henri. 2004a. Ecrits théoriques, 1954–1967, edited by Pascal Decroupet, 147–59. Collection musique, musicologie. Sprimont: Editions Pierre Mardaga. ISBN 978-2-87009-865-3.
Pousseur, Henri. 2004b. Série et harmonie généralisées: une théorie de la composition musicale: Ecrits, 1968–1998, edited by Pascal Decroupet. Collection Musique, musicologie. Wavre: Editions Mardaga, 2004. ISBN 978-2-8047- 0013-3.
Sabbe, Herman. 1977. Het muzikale serialisme als techniek en als denkmethode: Een onderzoek naar de logische en historische samenhang van de onderscheiden toepassingen van het seriërend beginsel in de muziek van de periode 1950–1975. Ghent: Rijksuniversiteit te Gent.
Vantroyen, Jean-Claude. 2009. "Le compositeur belge Henri Pousseur est décédé". Le Soir (6 March).
Whiting, John. 2009. "Henri Pousseur: Avant-garde Composer Seeking a Synthesis of Sound and Image". The Guardian (11 March).