Born on 27 July 1928 in Aštruli (Marijampolė district). Died 18 November 2005. Buried in Vilnius, Antakalnis Cemetery, Menininkų kalnelis.
After graduating from Prienai Secondary School, he entered the Vilnius State Pedagogical Institute, where in 1953 he became a teacher of Lithuanian language and literature and started working as a department head in the editorial office of "Tarybinis mokytojo" (Soviet Teacher). From 1960, he worked as head of the Literature and Literary Criticism Department of "Literatūros ir meno", and from 1962 to 1968 he was editor-in-chief of the magazine "Ekrano naujienos". From 1968 to 1972, he worked at the Lithuanian Academy of Sciences as the chief editor of the Scientific Organisation Department, and from 1972 until his retirement he worked at the Soviet Teacher as the head of the Culture Department.
Antanas Bieliauskas has been a member of the LRS since 1973, author of nine books. In 1955 he wrote his first play "Examinas", which was staged at the State Academic Drama Theatre and published in 1956. Another collection of plays, The Unfinished Portrait, appeared in 1961. In 1960, Antanas Bieliauskas, together with Gintautas Iešmantas, published a collection of essays "Kad zemėje žydėtų gėlės" (To make flowers bloom in the earth). In 1972, he published his first collection of short stories "Siūbavo jovarai". Later, he published a book of short stories "Red Woodpeckers" (1978), travel novels "Under the Blue Sky of Hawaii" (1986), and a collection of short stories "Farewell to Love" (2004). In 1987, Antanas Bieliauskas compiled a collection of teachers' poetry called "Wake Up to Joy".
Antanas Bieliauskas's prose and dramatic works are realistic, reflecting social and moral problems, and his short stories contain many detective elements. The writer devoted most of his energies to the pedagogical press, promoting cultural and literary values; on the other hand, his journalistic work and social activities gave him a lot of fresh material from his life, which he successfully used in his work.