This　present　invention　discloses　a　temperature-sensitive　nano-silver　controlled　release　antibacterial　coating　composite,　　which　is　comprises　:　　water,　　acrylic,　　polyurethane　resin,　　temperature-sensitive　nano-silver　controlled　release　antibacterial　agent,　　dispersant,　　curing　agent,　　defoamer,　　filming　additive　and　leveling　agent.　By　adsorbing　nano　silver　particles　into　the　pores　of　mesoporous　SiO2　modified　by　poly　N-isopropyl　acrylamide,　　we　successfully　prepared　a　temperature-sensitive　nano-silver　controlled　release　antibacterial　agent.　By　adding　the　prepared　agent　to　the　conventional　coating　composite,　　we　achieved　“on-off”　control　of　the　antibacterial　properties　of　coating　composite.　Through　the　control　of　temperature,　　the　release　of　nano-silver　in　the　mesoporous　nano-silica　of　the　coating　film　layer　is　controlled.　This　control　method　is　not　only　to　protect　the　nano-silver,　　but　also　to　adjust　the　strength　of　the　anti-bacterial　properties　according　to　the　actual　demands　and　improve　the　use-efficiency　of　nano　silver　particles.　This　invention　is　in　line　with　the　new　concept　of　“Intelligent　Age”　in　the　21st　century.