The present invention relates to a ceramic ingot for an artificial tooth which includes 15.0~40.0 mol% of SiO_2, 25.0-45.0 mol% of CaO, 10.0-30.0 mol% of MgO, 1.0-20.0 mol% of TiO_2, 1.0-15.0 mol% of P_20_5, 0.01-5.0 mol% of CaF_2, and 0.01-5.0 mol% of ZrO_2, and to a method for manufacturing the same. According to the present invention, the ceramic ingot for an artificial tooth has thermal conductivity similar with thermal conductivity of a real tooth and thus can prevent tooth ache caused by cold, has transparency and the color which are similar to transparency and the color of the real tooth and thus is less visibly different from the real tooth; has strength and hardness which are very similar to strength and hardness of the real tooth and thus can prevent the real tooth from being worn, and has excellent durability.본 발명은, SiO2 15.0∼40.0몰%, CaO 25.0∼45.0몰%, MgO 10.0∼30.0몰%, TiO2 1.0∼20.0몰%, P2O5 1.0∼15.0몰%, CaF2 0.01∼5.0몰% 및 ZrO2 0.01∼5.0몰%를 포함하는 인조치아용 세라믹 잉곳 및 그 제조방법에 관한 것이다. 본 발명의 인조치아용 세라믹 잉곳에 의하면, 열전도율이 자연치아와 유사하여 치아 시림 현상이 억제될 수 있고, 자연치아와 유사한 투광성 및 색상을 발현하여 자연치아와의 이질감이 작을 뿐만 아니라, 강도 및 경도가 자연치아와 매우 유사하여 자연치아가 마모되는 것이 억제될 수 있으며, 내구성이 우수하다.