China’s　＇Cybersecurity　Law＇　mandates　that　critical　information　infrastructure　must　comply　with　the　Multi-Level　Protection　Scheme　(MLPS)　2.0,　which　requires　a　proactive　security　assurance　system　that　is　＇trustworthy,　controllable,　and　manageable.＇　Traditional　information　security　education　often　lacks　practical　training　cases　related　to　trustworthy　computing　and　MLPS,　and　there　is　a　scarcity　of　systematic　defense　practices　integrated　with　security　application　scenarios.　Based　on　the　proactive　trust　mechanism,　the　Trustworthy　Computing　Laboratory　at　Beijing　University　of　Technology　has　proposed　a　new　design　for　Trusted　3.0　cyber　security　competition　problems.　These　designs　provide　practical　training　cases　and　competition　topics　related　to　MLPS,　as　well　as　lightweight　simulation　methods　for　complex　application　scenario　attack　and　defense.　The　laboratory,　leveraging　its　developed　cloud　virtual　trusted　root　technology　and　general-purpose　trusted　base　software,　has　built　a　cloud-based　cybersecurity　teaching　platform　based　on　the　active　immunization　trust　mechanism.　This　platform　supports　the　Trusted　3.0　cybersecurity　competition　topics,　enabling　the　simulation　of　use　cases　and　attack-defense　scenarios,　fulfilling　the　training　needs　related　to　MLPS,　and　enhancing　students’　practical　engineering　skills.　©　2024　Copyright　held　by　the　owner/author(s).