Tugo Šušnik was born in Ljubljana. He studied painting under Professors Nikolaj Omersa, Zoran Didek, Kiar Meško and Gabrijel Stupica at the Academy of Fine Arts in Ljubljana. He graduated in 1976. He continued his studies with a specialization in painting under Professors Andrej Jemec and Jože Ciuha, and completed it in 1979.
In 1997, he won the Prešeren Fund Award for his retrospective exhibition at the Museum of Modern Art in 1996.