Li2O-Al2O3-SiO2　(LAS)　glass-ceramics　are　commercially　significant　due　to　their　unique　microstructure　and　exceptional　properties,　including　near-zero　thermal　expansion　coefficient,　making　them　suitable　for　a　wide　range　of　applications.　However,　the　content　of　SiO2　and　Al2O3　in　the　composition　of　LAS　glass　is　very　high,　which　leads　to　high　viscosity　and　very　difficult　melting　of　this　type　of　glasses.　In　order　to　reduce　the　melting　temperature　of　the　glass,　use　of　relatively　high　Na2O　in　the　basic　glass　composition　allows　high-quality　glass　to　melt.　Employing　a　simplified　heat-treatment　method,　LAS　glass-ceramics　are　prepared　with　Australian　spodumene　as　the　primary　material.　By　exploring　the　effect　of　crystallization　temperature　on　the　structures　and　properties　of　the　resulting　LAS　glass-ceramics,　samples　with　excellent　comprehensive　properties　are　achieved.　The　prepared　glass-ceramics　are　thoroughly　characterized　using　DSC,　XRD,　FTIR,　SEM,　and　TEM,　along　with　assessments　of　their　viscosity,　thermal,　optical,　and　mechanical　properties.　Relatively　more　Na2O　is　introduced　into　the　glass　compositions,　which　can　lower　the　melting　temperature　of　the　glass　to　below　1600　degrees　C.　The　basic　glass　is　annealed　at　700　degrees　C　for　2　h,　nucleation　phenomenon　Nucleation　phenomenon　can　be　generated　in　the　LAS　glasses.　When　the　microcrystalline　temperature　of　glasses　increases　from　835　degrees　C　to　910　degrees　C,　the　main　crystalline　phase　of　glass-ceramics　changes　from　beta-quartz　solid　solution　to　beta-spodumene　solid　solution.　The　change　in　the　main　crystal　phase　has　significantly　affected　the　properties　of　glass-ceramics.　When　the　crystallization　temperature　is　below　860　degrees　C,　the　glass-ceramics　exhibit　a　low　negative　expansion　coefficient　(＜-0.5　x　10(-6)　K-1),　high　visible　light　transmittance　(＞85　%),　and　excellent　average　flexural　strength　(173.3　MPa).