Aluminoborate　glass,　recognized　for　its　remarkable　crack　resistance,　presents　significant　potential　as　a　cover　material　for　portable　electronic　devices.　Nevertheless,　its　relatively　low　hardness　has　been　a　limiting　factor.　This　study　synthesized　a　series　of　11　Li2O-30　Al2O3-(55-x)　B2O3-2　TiO2-2　P2O5-xCaO　(wt%),　with　x　varying　from　0　to　10,　employing　the　melt-cast　method.　The　resultant　glass-ceramics　were　produced　via　heat　treatment　at　590　degrees　C　for　2　h,　followed　by　a　systematic　examination　of　their　structural　and　mechanical　properties.　The　investigation　demonstrated　that　an　increase　in　CaO　content　diminishes　crystallization　and　induces　a　morphological　transition　in　the　crystalline　phases　from　granular　and　short　rod-like　structures　to　lath-like　formations,　which　subsequently　impacts　the　coordination　environment　of　Al　and　B　atoms.　With　a　CaO　content　of　2　%,　the　GC2　sample　precipitated　Li(Al7B4O17)　and　Li2AlB5O10　phases,　achieving　a　compressive　strength　(CR)　value　of　15.0　N,　a　hardness　of　7.51　GPa,　and　a　fracture　toughness　of　1.50　MPa　m0.5.　This　glass-ceramic　exhibited　optimal　scratch　resistance　and　visible　light　transmittance　exceeding　85　%,　underscoring　its　considerable　promise　for　application　as　smartphone　cover　glass　due　to　its　impressive　overall　damage　resistance.