Abstract: In order to obtain magnesia stabilized zirconia slurry with good liquidity and stability, the effects of solid content, dispersant addition, slurry pH and milling time on the liquidity and stability of slurry were analyzed by viscosity test, sedimentation test and Zeta potential and particle size test. The results show that with the increase of solid content, viscosity and stability of slurry increase and liquidity decreases. Liquidity of slurry increases and then decreases, and the stability increases and then changes little as the increase of dispersant addition, slurry pH and milling time. Absolute value of Zeta potential of the alkaline slurry is larger and its stability is the best. Zeta potential increases and then decreases with the increase of dispersant addition.When the solid content was 45%, volume fraction of dispersant was 2%, slurry pH was 9 and milling time was 48 h, the ceramic slurry can obtain better liquidity and stability.