Sapphire single crystal is the currently preferred material for transparent armor for its excellent mechanical properties and optical properties. Edge-defined film-fed growth (EFG) method can be used to grow crystal with shape and size close to the target requirements, and reduce the production cost greatly. In this paper, the equipment for growing super large sapphire crystal with EFG mothed was designed, the thermal field and conditions were optimized, and a sapphire single crystal plate with size of 480 mm×1 200 mm×12 mm was grown successfully. Its shape is regular, and no scattering is found under irradiation of 20 mW He-Ne laser after removing the surface bubble layer.