In this research, the improvisational dance creation was explored from the direction of choreography practice. In the study of improvisation, it is meaningless to have an idea without examples. Choreography is used to study this theme because through the practical study of dancers, the survey results can be obtained more intuitively, accurately, and in detail. Therefore, the article will focus on the practical research of the method of space design to stimulate the dancer's "vitality effect", and explore the role of this method in improvisational dance.