He became a Palestinian nationalist in the early 1960s and joined Fatah in 1962, being responsible for recruitment. He was appointed Fatah regional command in Lebanon in October 1972. He went to exile with Arafat during the 1970s. Habash served as the ambassador of Palestine in the Soviet Union between 1984 and 1985. He was a member of the Fatah Central Committee from August 1989 to August 2009. He was also a writer, a poet and an artist. Habash served as the movement's general deputy of intellectual affairs.
Death
He died of a stroke in the West Bank on 1 November 2009 and was survived by his wife and four children.