This study examines shifts in dance reception within the omnichannel environment from the perspective of ‘extended corporeality.’ Employing William Forsythe’s ‘choreographic object,’ Andre Lepecki’s ‘body as archive,’ and Kate Mattingly’s ‘choreographic apparatus’ as analytical frameworks, the study analyzes cases including Ambiguous Dance Company that traverse online and offline boundaries. The findings reveal that the omnichannel environment reconstructs dance through mechanisms of ‘translation’ and ‘control.’ First, as dance detaches from the physical body and is converted into data, it generates ‘mediated performativity’ and ‘performative archives.’ Second, under algorithmic control, audiences transition into active ‘performative spectators’ (corporeal prosumers) who embody and produce dance themselves. To address the risks of technological subjugation and the standardization of bodily aesthetics, this study proposes practical measures: establishing test-beds for empirical projects, introducing ‘modular choreography’, and building participatory dance-sharing platforms. This study is significant in elucidating the ontological transformation of dance and presenting a roadmap for a sustainable dance ecosystem.