The　related　researches　about　district　cooling　systems　are　very　limited　in　China,　which　leads　to　several　misunderstandings　and　improper　applications　in　engineering　practices.　Under　this　background,　a　real　project　with　the　district　cooling　system　in　a　residential　community　is　analyzed　in　this　paper,　and　the　equipment　performances　are　discussed.　It　is　found　that　the　occupant　behavior　has　a　key　influence　on　the　efficiency　of　a　district　cooling　system.　Through　the　simulation　which　accounts　for　the　different　use　modes　of　residents,　the　applicability　analysis　about　the　application　of　district　cooling　systems　in　residential　buildings　is　conducted.　Through　the　research,　it　can　be　concluded　that　the　district　cooling　system　can　only　be　high　efficiency　with　a　concentrated　terminal　load　profile.　And　for　the　popular　occupant　behavior　in　residential　buildings　in　China,　it＇s　worth　examining　whether　the　applicaition　of　district　cooling　systems　is　suitable.