Background <p>Clinical internship is a crucial component of nursing education, with the feeling of accomplishment of nursing students playing a significant role in shaping their professional identity and career development. However, qualitative research on nursing students feeling of accomplishment remains limited.</p> Design <p>A qualitative interpretive phenomenological study.</p> Methods <p>Seventeen nursing students were recruited using purposive sampling. Semi-structured interviews were conducted, The data were analyzed using thematic analysis.</p> Results <p>Four themes were identified: (1) Sources of accomplishment, (2) Expression of inner emotions, (3) The significance of accomplishment, (4) The perspectives of accomplishment and emotional conflict.</p> Conclusions <p>It is essential for clinical nursing managers and educators to recognize the significance of nursing students’ feeling of accomplishment and the underlying dynamics that influence it. Furthermore, optimizing mentorship approaches during clinical internships can play a pivotal role in advancing nursing practice education and fostering more effective learning environments.</p>