Painter, engraver and sculptor, Orsatti began his pictorial experience in the company of his father, a craftsman. In 1931 he enrolled at the Dosso Dossi Art School in Ferrara. His teacher was Angelo Longanesi-Cattani, a former follower of Gaetano Previati and Giuseppe Mentessi, who also introduced him to sculpture. In 1937 he took the entrance exams to the Academy of Fine Arts in Bologna, passing them and being admitted to the painting course held by Virgilio Guidi. In 1939 he made his first etching, under the guidance of Giorgio Morandi. Orsatti was an excellent etcher and took part in many exhibitions, both in Italy and abroad. He exhibited at the national Biennials of Milan and Venice and at the Quadrennials of Rome. Abroad he exhibited in Athens, Berlin, Bucharest, Brussels, Cannes, Lima, London, Ljubljana, Marseille, Moscow, New York, Paris, San Francisco, San Paolo, Thessaloniki, Warsaw and Vienna. He taught Painting and Figure at the Dossi Institute in Ferrara.