He was born on 11 July 1929 in Martin. He was a painter, graphic artist and monumentalist.

He studied at the Academy of Fine Arts and Design in Bratislava, in the painting department under Professors Ján Želibský and Ľudovít Fulla, graduating in 1955. Alongside painting, drawing, free and applied graphics and illustration, he also collaborated with architects. In each of these genres he particularly enjoyed emphasising the rustic robustness of form, and it can be said that the expressive-figurative quality of his painting and graphic work is rooted in a shared affinity of ideas with the members of the Mikuláš Galanda Group.

The Mikuláš Galanda Group presented itself as a whole for the first time at its exhibition in December 1957 in Žilina. The exhibition catalogue contained a jointly signed declaration by all members of the group, with a clear orientation towards the legacy of Slovak modernism — above all the work of Mikuláš Galanda, Ľudovít Fulla, Miloš Alexander Bazovský and Cyprián Majerník. This declaration is regarded as the group’s manifesto. At the time of its founding, the group had 11 founding members: Andrej Barčík, Róbert Dúbravec, Zdeno Horecký, Vladimír Kompánek, Rudolf Krivoš, Milan Laluha, Miroslav Marček, Milan Paštéka, Ľudovít Štrompach, Ivan Štubňa and Pavol Tóth; Ever Púček exhibited with them as a guest. The emergence of the Mikuláš Galanda Group — and naturally also its participation in their legendary exhibitions (1957 Bratislava, 1958 Brno, 1962 and 1965 Bratislava and Prague, 1968 Berlin — the final exhibition) — is associated with the beginnings of modern artistic thinking in Slovakia.

By 1957, academic painter Miroslav Marček had arrived at such a degree of reduction in both his graphic works and paintings that the woodcut technique no longer suited him. He discovered the possibility of laconically carving individual forms into a masonite board of the kind occasionally used by some painters as a ground for painting. This allowed him to create compositions of smoothed geometric surfaces, while at the same time achieving distinctive textures in places through various methods of roughening and incising.

His work was also influenced by numerous study trips abroad. As a member of delegations of the Union of Slovak Fine Artists, he visited Denmark, Italy, Sweden, France, Spain, Greece and many other countries.

He died on 31 July 1995 in Martin.

On the Píly housing estate, Marček’s works can be found on Björnsona Street, as well as works he created together with M. Laluha on Štefánikova Street and on J. C. Hronský Square (9 panels with figurative drawings incised into cement on the balustrade of the arcade on the ground floor of the wing facing the square).