Using solid-state reaction method, Zr 2 WP 2 O 12 powder was synthesized for this study. The optimum heating condition was 1200°C for 4h. The obtained powder was compacted and sintered. The relative density of the Zr 2 WP 2 O 12 ceramics with no sintering additive was 60%. That of samples sintered with more than 0.5 mass% MgO was about 97%. The average grain size (D 50 ), as estimated from the polished surface of a sample sintered at 1200°C for 4h was about 1μm. The obtained ceramics showed a negative thermal expansion coefficient of about −3.4×10 −6 °C −1 . Young's modulus, Poisson's ratio, three-point bending strength, Vickers microhardness, and fracture toughness of the obtained ceramics were, respectively, 74GPa, 0.25, 113±13MPa, 4.4GPa and 2.3MPam 1/2 .