László Szabó lived in Hajdúszoboszló until the age of fourteen, then in Debrecen, where he also graduated from high school. Between 1940 and 1943 he studied law at the University of Debrecen. When he was called up for military service, he decided to escape after a few months. He hid in Balatonföldvár, where he was a lifeguard. He made his way to Switzerland under adventurous circumstances, even swimming across the Rhine at Basel. He became an educator in a camp for persecuted children, and that's when he started carving stones. After the war, he continued his law studies in Geneva and then in Lausanne, after having interrupted them in Debrecen. But his interest turned increasingly to the arts. After his university classes, he spent his time studying paintings and sculptures. In 1947, his first relief painting earned him a scholarship to the Paris Academy of Fine Arts, where he was immediately accepted as a third year student and graduated after a year. He worked as a stonemason on the restoration of the Gothic cathedral of St Peter's in Beauvais.
Since he didn't have much money, he lived in the cathedral. He participated in the Salon de la Jeune Sculpture in 1949 and the Salon des Réalités Nouvelles in 1951. From 1950, he lived at 22 rue Delambre in the Montparnasse district, where he created a 'habitable sculpture' in his apartment, which resembled a wheat oven and in which he actually lived. It was here that the Group of Fifteen, a society of young artists, was founded. He was also one of the founders of the artists' community that was organised in his studio, called L'Academie du Feu (The Academy of Fire). Here, artists could not only meet each other, but also organise exhibitions. Among its followers were Etienne Martin's La Demeure (The Dwelling Place) series and Péter Székely's Beg Meil holiday village. Some sources claim that Le Corbusier was influenced by him when he designed Notre Dame du Haut (Ronchamp). In 1953 he spent several months in the north of Canada among Eskimos. On his return he exhibited their carvings. In 1956 he exhibited at Vaison la Romaine with Jean Arp and Calder, among others, and in 1958 at the Claude Bernard Gallery in Paris with Henry Moore, Henri Laurens and Constantin Brâncuşi. His work was shown alongside paintings by Pablo Picasso and Joan Miró. When he was able to live a more financially settled life, he bought a few studios and rented them out for a token sum to his artist friends in need.
He has had several solo exhibitions in Germany. In 1970 at the Ben Wargin Gallery in Berlin, in 1971 at the Kunsthalle Hamburg and the Museum Mainz, in 1973 at the Kunsthalle Mannheim. In Munich, he was one of the winners of the competition for the sculptural decoration of the Olympic Village with Flying Fish. Also in the Bavarian capital, the Sun statue stands in Henrik Duke Street, the Growth statue at the corner of Ungerstrasse and Fuchsstrasse, a snow-white limestone giant in the park of the Kunsthalle in Mannheim, and the Tree of Life in front of the town hall in Mainz. His sculptures have been placed in public squares, museums and private collections in many cities. He has exhibited from Oslo to San José Castle in Lanzarote, Canary Islands, home of modern art.
He had his first exhibition in Hungary in 1968. During the last sixteen years of his life, he spent a large part of the year in Hajdúszoboszló, surrounded by his loved ones. During this time, he commissioned smaller and larger versions of two hundred of his works in various materials from the workshops of the Fine Arts Execution Company and paid for them in currency. He bought a chateau in Ravenel, near Saint-Justen-Chaussée, in which to house his large-scale works. When his health failed, he sought refuge in Le Suquet, above Cannes. He also made regular visits to his home in Hajdúszoboszló. He died in December 1984 and is buried in Ravenel.