To　improve　the　reusability　of　knowledge　in　structural　intelligent　optimization　for　complex　component,　a　configurable　representation　method　for　structural　performance　characteristics　knowledge　was　investigated,　and　the　hierarchical　organizational　structure　of　component　performance　knowledge　with　the　detailed　characterization　representing　of　structural　performance　was　presented　by　considering　the　similar　structural　characteristics　of　complex　components　in　the　same　family.　Aiming　at　the　problem　for　difficulty　in　representing　and　reusing　the　massive　knowledge　units　caused　by　detailing　characteristics,　the　hierarchical　knowledge　model　based　on　matrices　was　constructed.　Meanwhile,　the　strategy　of　rapid　deploying　and　reusing　structural　performance　characteristics　knowledge　was　explored　to　improve　the　efficiency　of　reusing　knowledge.　The　proposed　method　was　applied　in　representing　the　structural　performance　characteristics　knowledge　of　excavator　boom,　the　corresponding　software　module　of　knowledge　acquisition　and　deployment　was　constructed.　The　knowledge　deployment　testing　was　taken　to　demonstrate　the　feasibility　and　effectiveness　of　this　method.