In　continuous　digital　light　processing　(DLP)　3D　printing,　the　continuous　lifting　in　the　pulling-up　stage　may　result　in　an　insufficient　resin　filling　for　large-area　structures,　which　limits　its　applications.　Some　researchers　proposed　a　concept　of　maximum　filling　distance　(MFD)　and　combined　continuous　and　layer-wise　printing　for　large-area　rapid　printing　(LARP).　However,　the　current　MFD　is　estimated　by　experiments,　which　is　far　from　optimal.　In　this　paper,　a　computational　fluid　dynamics　(CFD)　analysis　method　is　proposed　to　simulate　the　resin　filling　during　the　pulling-up　stage　for　rapid　DLP　printing.　Poiseuille　flow　is　used　to　establish　the　CFD　analysis　models.　The　Volume　of　Fluid　method　is　designed　to　simulate　the　resin　filling　behavior.　The　MFD　can　be　predicted　from　the　simulations.　The　validation　of　predicted　results　are　fulfilled　by　actual　printing　processes.　Printing　experiments　show　that　the　proposed　method　can　be　successfully　applied　to　different　resins　and　printing　parameters.　It　increases　the　efficiency　of　printing　a　new　model　or　developing　novel　printing　materials.　　©　2022　ACM.