As a little girl she sang in the well-known Polish children's music band Fasolki. In 1999 she started her regular acting career. She has an interest in arts - especially in sculpture - and she even runs her own small company. She has two daughters: Karolina (born in 2003), Jagoda (born in 2010) and one son: Jozef (born in 2014).
Monika Mrozowska appeared twice in Playboy session (2004 and 2008).