He illustrated erotic drawings of Bataille and Sade's sulfurous texts. Masson broke with Breton in 1929, but was one of the active contributors to the surrealist magazine published from 1933. In the 1930s, the artist produced series of drawings on the theme of. In 1941 he took refuge in the United States with several surrealists, including Breton. The influence of his automatic approach was decisive on the work of Arshile Gorky or Jackson Pollock.
Returning to France after the war, Masson settled in Aix-en-Provence and replaced automatism with a very colorful expressionist and lyrical landscape painting, on the verge of abstraction. In 1965, he was entrusted with the decoration of the ceiling of the Odéon theater, while the same year a retrospective at the National Museum of Modern Art dedicated to his work. He died in Paris in 1987, at the age of ninety-one.