In 1945 after returning to Lviv, Krushelnytska worked as a restoration artist at the Museum of Ukrainian Art and completed her secondary education through an externship.
Krushelnytska is the only female archaeologist in the world who organized and successfully conducted more than 50 archaeological expeditions, which resulted in 206 scientific studies, of which more than 170 were published including 8 monographs.
Krushelnytska's scientific interests cover a wide range of problems in the archaeology of the Bronze and Early Iron Ages of Central and Eastern Europe.
[2] Large-scale research on the monuments of this period, conducted for the first time on the territory of the North-Eastern Carpathian region and Western Volyn, enriched archaeological science.
[4] A significant contribution of Krushelnytska is her substantiation of the phenomenon of the development of the Carpathian and Volyn lands as a contact zone and peripheral territory in relation to the ethno-cultural massifs of Eastern and Central Europe.
[4] Krushelnytska's research on the territory of Middle Transnistria and her selection of the Neporotivka group of monuments, which represents the western outskirts of Chernoles culture, are of high scientific importance.