During　the　past　decades,　fusion　reactor　fuels　such　as　deuterium　and　tritium　have　been　extensively　investigated　due　to　increasing　interest　in　nuclear　fusion　energy.　Tritium,　which　is　scarce　in　nature,　needs　to　be　fabricated　by　tritium　breeder　materials.　Among　the　commonly　investigated　tritium　breeder　materials,　lithium　titanate　(Li2TiO3)　is　recognized　as　one　of　the　most　promising　solid　tritium　breeder　materials　because　of　its　considerable　lithium　(Li)　atomic　density,　low　activation,　excellent　chemical　stability,　and　low-temperature　tritium　release　performance.　This　paper　aims　to　provide　a　systematic　review　of　the　current　progress　in　Li2TiO3　preparation　methods　as　well　as　the　high　Li　density,　tritium　release　performance,　irradiation　behavior,　and　modification　technologies　of　Li2TiO3　pebbles.　Li2TiO3　can　be　synthesized　by　strategies　such　as　solid-state,　sol-gel,　hydrothermal,　solution　combustion　synthesis,　and　co-precipitation　methods.　Among　them,　the　hydrothermal　method　is　promising　due　to　its　simplicity　and　low　cost.　Many　researchers　have　begun　to　focus　on　composite　ceramic　pebbles　to　further　improve　tritium　breeder　performance.　This　will　provide　a　new　direction　for　the　future　development　of　Li2TiO3　pebbles.　The　present　review　concludes　with　a　summary　of　the　preparation　methods　currently　under　development　and　offers　an　outlook　of　future　opportunities,　which　will　inspire　more　in-depth　investigation　and　promote　the　practical　application　of　Li2TiO3　in　this　field.