Graduated from the Dnipropetrovsk State Music College (vocal department). In 2009, she completed her vocal studies at the Glinka Dnipropetrovsk Conservatory (Nonna Surzhina’s class).

The prizewinner of the International vocal competition «Krymskaya Vesna» (Yalta, 2nd prize) in 2003. In 2005, she was a prizewinner of the Boris Gmyrya vocalist festival (Dnipropetrovsk, the 1st prize), 2008 — a prizewinner of the International Young Vocalists Competition «Orpheus» (Volgograd, the 1st prize), 2009 — diploma recipient of the International competition for opera singers named after Solomiya Krushelnytska (Lviv).

In 2006-2011 she was a soloist with the Dnipropetrovsk Academic Opera and Ballet Theatre, where debuted as Cerubino in Le nozze di Figaro by Mozart. In 2010 sang the part of Rosina in Il Barbiere di Siviglia by Rossini.

In 2008 Irina Petrova sang her first Carmen and then performed this role in Kyiv, Gauda, Deventer, Harleen, Venlo, IJmuiden, Zwolle, Leven, Hasselt, Zoetermeer, Delft, Eden, Rotterdam. She also appeared as Carmen at the Odessa Opera and Ballet Theatre (2009), The Bolshoi Opera and Ballet Theatre of Belarus (Minsk), Opera Nova in Bydgoszcz/ Poland (2010), Lviv Theatre of Opera and Ballet (2015) and Kharkiv Opera Theatre (2016).

Since 2011 Irina Petrova has been a soloist of the National Opera of Ukraine. Her operatic appearances also include Olga (Tchaikovsky’s Eugene Onegin), Polina (Tchaikovsky’s The Queen of Spades), Laura (Tchaikovsky’s Iolanta), Marina Mnishek (Mussorgsky’s Boris Godunov) Lyubasha (Rimsky-Korsakov’s The Tsar’s Bride), Flora Bervoix (Verdi’s La Traviata), Emilia (Verdi’s Otello), Maddalena (Verdi’s Rigoletto), Ciesca (Puccini’s Gianni Schicchi), The Mistress of the novices (Suor Angelica), Lola (Mascagni’s Cavalleria rusticana). In 2017 she sang in La Traviata (Flora) in Holland and Belgium.