After school, Anton Fliss worked as a cast grinder in an iron foundry. In 1966, he moved to Billerback and maried. In 1975, he fell ill with a psychosis and came to the hospital in Münster (Landeskrankenhaus Münster). Since 1984, he lives on the Alexianer campus, where he started to draw in 1985 (stimulus of the sister). Since 1995, Anton Fliss is a member of the studio group in the Kunsthaus. In his room, he has his own little studio, to work indepentently and in his own rhythm.