This　study　aimed　to　investigate　the　impact　of　different　curing　regimes　on　the　strength　of　magnesium　silicate　hydrate　cement　(MSHC).　The　study　employed　various　microscopic　tests,　including　XRD,　TG,　SEM,　and　MIP,　to　analyze　the　underlying　mechanisms.　The　research　findings　demonstrated　that　the　use　of　short-term　high-temperature　curing　under　the　two-stage　variable　temperature　curing　regime　(TTC)　significantly　enhanced　the　early　strength　of　MSHC,　with　a　3d　strength　exceeding　30　MPa.　In　contrast,　under　standard　curing　(SC),　the　strength　was　only　around　2　MPa.　The　samples　subjected　to　TTC　did　not　exhibit　the　strength　retrogression　phenomenon　observed　under　high-temperature　curing　in　previous　research,　and　a　high-temperature　curing　duration　of　48　h　was　found　to　be　more　beneficial　for　the　strength　development　of　MSHC.　However,　from　a　long-term　perspective,　the　latestage　strength　of　the　TTC　samples　was　lower　than　that　of　the　SC　samples.　Microscopic　tests　revealed　that　increasing　the　curing　temperature　substantially　improved　the　early　hydration　degree　of　MSHC,　reduced　its　porosity,　and　resulted　in　a　more　compact　cement　matrix,　thereby　enhancing　the　early　strength.　Under　TTC,　hydration　continued　in　the　later　stage,　leading　to　a　decrease　in　porosity　and　promoting　further　strength　growth.　However,　in　the　long-term,　the　microstructure　of　the　TTC　samples　became　loose,　and　the　interface　connection　between　silica　particles　and　gel　weakened.　Compared　to　the　SC　samples,　the　TTC　samples　exhibited　higher　porosity,　resulting　in　lower　long-term　strength.(c)　2023　The　Authors.　Published　by　Elsevier　B.V.　This　is　an　open　access　article　under　the　CC　BY-NC-ND　license　(http://creativecommons.org/licenses/by-nc-nd/4.0/).