Postmodern dance is an academic concept and artistic movement that emerged in the mid-20th century, fundamentally challenging the established conventions of modern dance. As a research field, it investigates the nature of movement, performance structures, and the relationship between art and everyday life through practices characterized by the rejection of traditional technique and narrative, the use of pedestrian movement, improvisation, and site-specificity. Its significance lies in its radical expansion of the definition of dance and its profound influence on subsequent performance forms and critical theory.