Martini got during his youth in Treviso a training as a Goldsmith and ceramist. In 1905 he wanted to be a sculptor and studied at the local sculptor Antonio Carlini. He suggested in the same year eight works in Treviso. In 1907, he visited Paris for the first time with the painter Gino Rossi, with whom he would remain friends his entire life. In 1908 he went to study sculpture at Urbano Nono to the Accademia di Belle Arti di Venezia in Venice. He put in 1909 his studies at Adolf von Hildebrand in Munich, where he was influenced by Expressionism. One of his first works was the expressionist La puttana from 1909/1913 (Galleria d'Arte Moderna di Ca ' Pesaro). With Rossi he exhibited at theGalleria Internazionale d'Arte Moderna Ca ' Pesaro in Venice in the. In 1912 he visited Paris for the first time there with Rossi once again to exhibit during the internationalSalon d'Automne. During the first world war was Martini serving in a ammunition factory, where he learned metal casting.
Like many other Italian artists, who broke with the classical art design and knowledge had made with the avant-garde currents, he joined in 1926 to founded in 1922/1923Novecento Italianomovement.  In 1931, he took part in the Quadriennale di Roma, where he got the Grand Prize in the sculpture Department. He received commissions for official work of the Government (monuments and memorials) and made in 1937 the large relief Giustizia corporativa for the Palace of Justice in Milan, a work which he himself was very ambivalent. Later in the 1930she went painting and in 1939 he gave sculpting temporarily. In the years following 1941 he made some works on Commission. In 1945, he described its attitude to the sculpture in the book La scultura, lingua morta(sculpture, a dead language). In 1946 he created his last sculpture, or Palinuro Bozzetto per il Palinuro, a monument to a prematurely dead partisan.
The work of Martini was traditionally figurative, later, and had great influence on modern Italian sculptors such as Marino Marini, Emilio Greco, Marcello Mascherini and Pericle Fazzini. Martini worked in bronze, marbleof Carrara, wood and terracotta.
- Sculpture park of the Kröller-Müller Museum in Otterlo : Giuditta e Oloferne (1932/33)-acquired in 1960.
- Open air museum for sculpture Middelheim in Antwerp: various terracotta statues by Arturo Martini in the Middelheim Museum, which forms the core of the collection, including Gare invernali (1931), Chiaro di luna(1932) and Giochi invernali.