Considering the high melting point and high stability of SrO, it has potential applications in the field of the preparation of titanium alloys. To improve the hydration resistance, SrO samples with different ZrO2 additions were fabricated after firing at 1 750 ℃ for 6 h. The phase, the microstructure, and the hydration resistance of the samples were researched. The results show that the sample with 33 mol% ZrO2 addition possesses good hydration resistance with the mass gain after hydration for 13 days of less than 0.42 mass%. The SrO crucible with 33 mol% ZrO2 addition does not react with TiNi alloy melt during melting, which provides a support for searching new refractories with good hydration resistance for induction melting titanium alloys.