Tisapphire single crystals are important tunable laser materials. Recent researches are focusing on how to grow large-size and high-quality Tisapphire crystals to meet the demand of high-energy laser development. 30 kg grade Tisapphire of 0.2% ion concentrations has been successfully grown by the Kyropoulos (KY) technique through the optimization of the growth process. The experimental tests show that the crystal has a homogeneous titanium distribution and good optical performance. Meanwhile, the figure of merit (FOM) value of the crystal is larger than 200. The present paper is of great importance for the growth and laser application of large-size Tisapphire crystal.