Encapsulation　of　polyamines　for　the　practical　application　of　self-healing　epoxy　is　promising　yet　challenging　due　to　their　high　reactivity　and　good　solubility　in　water　and　most　organic　solvents.　Herein,　we　developed　an　innovative　method　to　directly　synthesize　microcapsules　containing　pure　polyamine　by　integrating　microfluidic　emulsion　and　interfacial　polymerization.　Using　this　integration　to　make　full　use　of　the　advantages　and　avoid　the　shortcomings　of　the　involved　two　techniques,　the　properties　of　the　fabricated　microcapsules　could　be　delicately　tailored　according　to　the　practical　demands　of　self-healing　materials.　The　superiority　of　the　obtained　polyamine　microcapsules　was　demonstrated　via　a　dual-microcapsule　high-performance　self-healing　system　with　fully　autonomous　recoverability,　high　thermal　and　long-term　stability,　relatively　fast　healing　kinetics.　The　highest　healing　efficiency　of　111　+/-　12%　in　terms　of　recovered　mode　I　fracture　toughness　was　achieved　at　room　temperature　for　48　h　without　any　external　intervention.　The　high　performance,　environmental　stability,　and　low　cost　and　toxicity　introduced　by　the　robust　microcapsules　promote　the　potential　practical　application　of　this　self-healing　system.