The　sodium　roasting-water　leaching　process,　the　primary　method　for　recycling　valuable　metals　in　spent　FCC　catalysts,　has　been　industrialized　and　has　good　economic　benefits.　However,　it　also　presents　a　significant　challenge.　Every　ton　of　waste　processed　by　the　FCC　catalyst　will　produce　0.75　tons　of　tailings,　mainly　containing　silicon-aluminum-based　substances,　residual　valuable　metals,　and　other　harmful　components.　These　spent　FCC　catalyst　tailings　are　listed　as　hazardous　in　the　＇National　List　of　Hazardous　Wastes.＇　The　need　for　harmless　tailings　disposal　is　crucial　for　its　resource　utilization　and　to　mitigate　its　environmental　impact.　This　study,　which　focuses　on　the　resource　characteristics　of　silicon-aluminum-based　substances　in　spent　FCC　catalyst　tailings,　develops　a　method　to　shield　harmful　components　and　solve　the　resource　utilization　problem,　which　can　significantly　impact　the　waste　management　field.　The　research　has　laid　a　theoretical　foundation　for　hazardous　waste＇s　harmless　disposal　and　resource　utilization.