Porous　tin　oxide-based　(SnO2-based)　ceramics　with　lattice　structures　were　prepared　by　digital　light　processing　(DLP)　3D　printing　technology.　A　57　wt%　SnO2-based　DLP　slurry　was　prepared　by　rheological　experiments.　By　optimizing　the　exposure　time,　the　DLP　process　for　preparing　SnO2　based　ceramics　had　better　molding　accuracy.　The　printing　size　error　could　be　controlled　at　about　1.8%.　The　degreasing　and　sintering　curves　were　obtained　by　thermogravimetric-differential　scanning　calorimetry　(TG-DSC)　analysis,　and　the　SnO2-based　porous　ceramics　with　porosity　of　50%-71%　were　prepared.　The　SnO2-based　ceramics　with　high　densification　could　be　obtained　by　sintering　at　1300　degrees　C　for　2　h.　The　relative　density　of　printed　SnO2-based　ceramics　was　about　92%.　In　this　paper,　zinc　oxide　(ZnO)　was　selected　as　a　sintering　additive　to　promote　the　densification　of　SnO2　ceramics.　According　to　the　characterization　methods　of　scanning　electron　microscopy(SEM),　X-ray　diffraction(XRD),　Energy　dispersive　spectrometer　(EDS)　and　relative　density,　the　optimum　doping　amount　of　ZnO　was　9　wt%.　The　influence　of　pore　structure　on　compressive　strength　was　analyzed　by　finite　element　simulation　and　compressive　test.　The　compressive　strength　of　porous　ceramics　could　be　reduced　from　1.56　MPa　to　0.27　MPa　by　controlling　the　porosity　of　the　porous　lattice　from　50%　to　71%.　The　compressive　strength　of　the　solid　block　was　160　MPa.　In　this　study,　the　porous　SnO2-based　ceramics　prepared　can　be　used　in　porous　electrodes,　lithium-ion　batteries,　super　capacitors,　catalysts,　sensors　and　other　fields　in　the　future.