Objectives This study attempted to find out the nature and meaning of ethical dilemmas that novice supervisors experience in supervision.
 Methods For reaching those, the study was conducted by Giorgi’s phenomenological method. In-depth interviews( average 90 minutes) with 10 novice supervisors whose supervision experience is less than 5 years were conducted, and the interview data was analyzed through the steps of identifying the overall meaning, classifying the semantic units, converting academic terms, and integrating into general structural statements.
 Results As a result, 135 semantic units were derived. Through phenomenological reflection and transformation of imagination, 32 subjects were drawn from those semantic units, which were then classified into 10 categories; feeling vague and burdened, reproaching oneself for not being able to fulfill the role due to lack of professional competence, feeling uncomfortable for not respecting supervisees or not being honest with them, undergoing hardships supervising and evaluation supervisees, facing situation by oneself not knowing what to do, facing difficulties applying the ethical guidelines in practice, facing difficulties balancing ethical guidelines and legal responsibility, confronting aggravated confusion due to structural problems, establishing standards based on experience, growing as a supervisor and working with ethical dilemmas.
 Conclusions Academic and practical implications of these results are discussed in relation to the previous studies about developmental traits of novice supervisiors and ethical dilemmas in supervision, with suggestion for follow-up studies.