Alexander Kostjuchenko was born in 1958 in village Vasilevka, Dobrush district, Belarus.
In 1978 he graduated from Minsk Art College.
Participates in regional and republican exhibitions and plain-airs since 1982.
Member of Belarusian Union of Artists since 1997.
Main plain-airs:
- International Plain-air "Solar Square of Life" in Minsk (Belarus) and Moscow (Russia).
- International Plain-air "Bayan’s motherland" in Trubchevsk, Russia
- International Plain-air "Kaluzhskie vizii" in Kaluzhe, Ukraine. International Plein Air.
- International Slavonic Plain-air in Kalinkovichi, Belarus.
Most important solo exhibitions: St. Petersburg (Russia, 2000) and Salzburg (Austria, 2003).