This　paper　presents　a　new　method　for　fabricating　high-resolution　porous　ceramics　using　the　3D　printing　tech-nology.　Stereolithography　3D　printing　was　used　to　create　porous　alumina　parts　with　polyamide　12　(PA12)　powder,　alumina　ceramic　particles,　and　acrylic　resin　as　the　sacrificial　porogen,　aggregate,　and　mixture,　respectively.　After　subsequent　de-binding　and　sol　impregnation　treatments,　a　porous　alumina　part　with　a　particle　size　of　15　mu　m　was　obtained　after　sintering.　The　use　of　aluminum　sol　enhanced　the　mechanical　properties　of　porous　alumina　ceramics,　thus　enhancing　their　strength.　A　discrete　element　method　model　was　used　to　simulate　and　explain　the　results,　thereby　providing　insights　into　the　optimization　of　the　method　design.　Accordingly,　this　study　demonstrated　the　potential　for　using　the　stereolithography　3D　printing　technology　to　fabricate　high　-resolution　porous　ceramics　with　tailored　properties　for　various　applications.