Krol Oleg was born in Minsk, 1947.
From 1954 to 1965 he studied at Lugansk secondary school № 7.
In 1970 graduated Voroshilovgrad Machine Building Institute by specialty “Semiconductor and electro vacuum machinery” and was qualified as mechanical engineer.
He participated in student building movement in Siberia.
From 1970 to 1974, worked as engineer-constructor in design institute “Dongiprouglemash”.
In 1971-1972 he served in the Soviet Army.
From 1974 works at Volodymyr Dahl East-Ukrainian National University.
In 1991 received a Ph.D. in Glushkov Cybernetics Institute to the Ukraine Academy of Sciences.
Since 2011, professor of Machine engineering and applied mechanics department.
Author of over 200 scientific and methodical works.
Certified expert in CAD APM «WinMachine».
Supervisor of student works – winners of international competitions.