Jean Le Moal enrolled at the "Ecole des Beaux-Arts de Lyon" in 1926, and the "Ecole des Arts Decoratifs de Paris" in 1929. He also attended the "Académie Ranson" (1935-1936).
In 1939 Le Moal worked on the 1400sq.meter ceiling of the French Pavilion at the International Exhibition in New York.
In 1942 he exhibited in "XX jeunes peintres de tradition française", with Bazaine, Manessier, Singier, Pignon, Gischia, and in 1943 in "Douze peintres d’aujourd’hui" at Galerie de France. In 1945 he was a founding member of the Salon de Mai.
In the post-war years Jean Le Moal became established as a prominent figure in European painting. He exhibited throughout Europe and was also awarded the "Prix de la Critique" in 1953.
Several retrospectives have been dedicated to Le Moal’s work, including at Musée de Lubeck and Musée de Wuppertal (1961), Musée de Metz,and Musée de la Ville de Luxembourg (1963), Musées de Rennes, Chatrtres, Rouen, Dijon, Lille, and Caen,(1970-1971), "Espace Lyonnais d'art contemporain" and Musées de Besançon, Esch-sur-Alzette, Dunkerque.
The artist’s work is represented in many museums including
- Musée National d’Art Moderne, Paris
- Tate Modern Gallery, London
- Museum of Modern Art, Wellington, New Zealand
- Museum of Modern Art, Mexico,
- Modern Art Museum of Luxembourg
- Onstad Museum, Norway
- Museo de Arte, Chile
- Musée d’Art Contemporain, Yugoslavia
- Musée de Turin, Italy