The aim of this study is to evaluate the use of fingernail in classical guitar training considering expert opinions. The study questions have been generated under three categories; the length, structure, shape and use of fingernail, fingernail care and products; and fingernail problems and solutions. This study is a qualitative study based on the descriptive approach. The study group consists of 27 experts in the field of guitar training. The data of the study has been collected by using structured interview form with 17 questions created by the researchers. Tables of opinions, frequencies and percentages have been generated through the evaluations of the expert opinions. As a result of the study, it has been understood that there are shared and different point of views upon the use of fingernail in classical guitar training. Experts' recommendations for the use of quotes, most of the experts suggest that various nail nutrients (vitamins, almond oil, olive oil, glycerin, nail hardener, nail polish, galleon, lemon juice) should be used, nails should be cared for every day and artificial nails for nail breaks before the event. In addition, when looking at the suggestions for the solution of problems experienced in the use of fingernails, most of the experts think that the problems related to the nails of the students are mostly due to breakage and structural problems due to inability to extend the nails. It is recommended to use lemon juice, almond oil glycerin according to the weight gain idea as a solution suggestion.