The purposes of this study was to apply an ‘Improvisation Dance Workshop’ to university dance major student specializing in creative dance and examine changes in the experience process through the research on lived experiences. The participants were selected through the purposive sampling method and included one dance teacher and five dance major students. They participated in a six-session improvisational dance workshop including an impromptu performance. After the workshop, they have in-depth interview. Their responses were analyzed in the four stages of A, Giorgi’s phenomenological analysis procedure. The results of overall identified total 8 general topics and 18 central meanings in the emotional aspects(improving self-confidence and emotional changes), cognitive aspects(new perception, need for an impromptu performance, and recognized uniqueness of an impromptu performance), and performance aspects of improvisation dance(enhancing performance, collaborative communication skills, and improving creative ability).