After demobilization in 1946, Boris Lavrenko entered at the first course of the Leningrad Institute of Painting, Sculpture and Architecture named after Ilya Repin.
In 1952, Boris Lavrenko graduated from the Leningrad Institute of Painting, Sculpture and Architecture as artist of painting in Rudolf Frentz workshop, together with Sergei Babkov, Leonid Baykov, Irina Baldina, Dmitry Beliaev, Abram Grushko, Marina Kozlovskaya, Boris Korneev, Elena Kostenko, Oleg Lomakin, Piotr Fomin, Vladimir Chekalov, and other young artists.
Boris Lavrenko’s works were exhibited in 1972 in Moscow, Leningrad, and Rostov on Don, to great acclaim.
His style distinguish a broad painting, energetic brushstroke, artistic transfer of tonal relations and states of lighting and air, palpable materiality of volumes and forms.
He was Doctor of art-criticism (1983), professor of painting, a head of personal workshop and graphical department of the Repin Institute of Arts.