The article presents some research approaches to the fairy-tale folklore of Bulgarians from the Republic of Moldova. According to author, the fairy-tales texts of Bulgarians from the Republic of Moldova, their semantic, symbolic, and structural features should be researched as a local (regional) variant of Bulgarian folklore. Identification of ethno-cultural markers in the fairy-tales of local Bulgarians on some different levels (such as on the subject, ethno-social and spiritual (church-religious) level) will allow to identify some peculiarities in the adaptation process of Bulgarians that migrated in a new ethnocultural zone. As well as to identify the level of preservation of basic ethnic mentality under conditions of new “mental environment”. Thus, the studying of regional ethnic culture is an interdisciplinary research, which allows to discover how localization in time and space affects ethnic culture in general and oral folk art in particular.