In this study takes the debate problem of interaction between folklore and literature written. In the last 20 years of past century this problem from a specific research question of folklore, but and of literary theory, turned into a huge line of research, drawing them in solving folklorists and literary objectives. It is certain that studies conducted differ not only by way of each individual researcher to interpret a problem, but also in terms of science investigation is initiated: folklore or written literature. In studies on the topic is highlighted two aspects of this line of research: studying the role of folklore in the development literature (literature folclorism) and the role of literature in the development of folklore (folk literaturalization). The first aspect is the research goals, methods and possible use of artistic works, folk traditions by written literature, so in specific historical periods of literary, but also in the work of each writer. The importance of this research is immense, because folklore was recommended as the most universal subject. The second part contains a number of issues related to the various possibilities of the professional literature to influence folklore, and the results of this action. Implementation is being carried by the gender system fluctuation, the evolution of new species etc. in written literature, then their reflection in folklore. In this article, is investigated the first aspect of this problem, the folkloristic research.