The　influences　of　the　molar　ratios　of　Al2　O3　/　Na2　O　(MAN　)　and　SiO2　/　Al2　O3　(MSA　)　on　the　crystallization　properties　of　the　glass　were　studied　in　this　work　based　on　the　sodium-aluminum-silicate　glass　system　containing　Y2　O3　and　ZrO2　.　The　results　show　that,　when　MAN　＜　1,　sodium　nepheline　crystals　precipitate　on　the　surface　of　the　glass　after　heat　treatment.　When　MAN　＞　1,　yttrium　zirconate　nanocrystals　can　be　formed　in　the　whole　bulk　glass,　and　the　glass-ceramics　can　maintain　a　high　visible　light　transmittance　of　90%　.　For　glass　with　fixed　MAN　,　adjusting　its　MSA　can　also　achieve　the　precipitation　of　yttrium　zirconate　nanocrystals,　and　the　size　of　the　precipitated　crystals　decreases　as　MSA　increases.　Furthermore,　as　the　heat　treatment　temperature　rises,　the　size　of　nanocrystals　in　glass-ceramic　nanocrystals　as　well　as　Vickers　hardness　increases.　©　2024　Bulletin　of　the　Chinese　Ceramic　Society　Press.　All　rights　reserved.