In　this　paper,　high　transmittance　glass-ceramics　containing　Zirconium　Yttrium　Oxide　(Zr0.82Y0.18O1.91)　nanocrystals　were　successfully　prepared　by　melt　cooling　and　crystallization　heat-treatment　method.　The　effects　of　Y2O3　concentration　on　the　structure,　crystallization　performance,　transmittance,　and　indentation　fracture　toughness　of　Na2O-Al2O3-B2O3-SiO2-ZrO2　glass　and　glass-ceramics　were　explored.　The　addition　of　Y2O3　improved　the　Vickers　hardness　(4.81　GPa-5.25　GPa)　and　indentation　fracture　toughness　(0.78　MPam(1/2)　to　0.95　MPam(1/2))　of　the　glasses.　Y2O3　successfully　facilitated　the　precipitation　of　the　non-alkaline　crystalline　phase　Zr0.82Y0.18O1.91　at　low　heat-treatment　temperatures.　The　precipitation　of　Zr0.82Y0.18O1.91　nanocrystals　improves　the　Vickers　hardness　(5.17　GPa-5.56　GPa)　and　indentation　fracture　toughness　(0.90　MPam(1/2)　to　1.01　MPam(1/2))　in　glass-ceramics,　while　concurrently　preserving　a　high　level　of　visible　light　transmittance　(similar　to　90　%).　This　demonstrates　its　potential　applications　in　the　field　of　protective　covers　for　electronic　displays.