Panoptic power is one of the economic and effective ways to improve urban safety. This paper takes panopticism as the theoretical basis and aims to promote the safety of building clusters

and summarizes the two types of panoptic power: site panoptic power and faade panoptic power. By using the research methods of visibility analysis and viewshed analysis

the panoptic power model of building clusters is constructed for quantification

thereby providing a new perspective for the scientific evaluation of the public safety in the panoptic aspect and further offering new ways to identify weak safety area in building clusters.