Barium　titanate　glass-ceramics　have　been　synthesized　through　sol-gel　process.　The　small　bulk　transparent　gel　derived　glass　was　got　by　heat-treating　gel　at　600degreesC.　The　pure　nano-sized　barium　titanate　crystals　formed　in　the　glass　matrix　after　the　gel　derived　glass　was　heated　above　700degreesC.　The　grain　size　and　structure　transition　of　materials　was　also　studied　by　using　XRD,　IR　and　Raman　spectrum.　The　results　indicated　that　the　gels　derived　glass　were　easy　to　be　crystallized,　the　heat-treatment　temperature　was　increased,　the　crystalline　size　increased,　and　the　cubic　barium　titanate　transformed　as　tetragonal　perovskite.