The　IZ-PU　microcapsule-type　curing　agent　was　prepared　by　interfacial　polymerization　method.　The　shell-core　structure　of　the　IZ-PU　microcapsules　was　demonstrated　by　IR　and　SEM.　The　core　content　and　coating　efficiency　of　the　IZ-PU　microcapsules　were　analyzed　by　DSC　test　of　the　one-component　adhesive　consisting　of　IZ-PU　microcapsules　and　epoxy　resin.　The　results　showed　that　the　IZ-PU　microcapsules　is　a　proper　latent　curing　agent　to　epoxy　resin,　its　latency　at　room　temperature　is　longer　than　30　days.