Abstract: The firefighting of commercial complex fires is not only a major challenge in current firefighting and rescue efforts, but also a hot research topic both domestically and internationally. In order to enable firefighting and rescue personnel to quickly understand the characteristics, rescue difficulties, and typical operation modes of commercial complex fires, improve their ability to extinguish commercial complex fires, and more efficiently respond to commercial complex fire rescue, this article combines the on?site investigation of typical commercial complexes in Jiangsu Province, analyzes the characteristics of fires, firefighting and rescue difficulties, main fire forms, and other aspects, explores the typical operation modes and key disposal points of key parts of commercial complexes, and provides some measured data to provide reference for the firefighting of commercial complex fires.

Key words: commercial complexes, fire, fire extinguishing and rescue