Low expansion Li₂O-Al₂O₃-SiO₂ (LAS) glass-ceramics were prepared using sintering method. The effect of ZnO partially substitution for Li₂O on the microstructure, sintering behavior, crystallization behavior and properties of LAS glass-ceramics was investigated. The results show that the substitution of ZnO for Li₂O reduces the initial crystallization temperature of LAS glass-ceramics, leading to significant amount of Li₂Al₂Si₃O₁₀ phase precipitating out after holding at 800 ℃ for 10 min, which hinders the sintering shrinkage of glass. In contrast, the LAS glass-ceramics without ZnO exhibits slower crystallization at 800 ℃, which is beneficial for sintering densification process. When the sintering temperature is 1 100 ℃, the main crystalline phase present in glass-ceramics is identified as β-spodumene. The coefficient of thermal expansion of glass-ceramics without ZnO is 1.747×10^-6 K^-1, the flexural strength is 138.4 MPa, the dielectric constant is 3.52 and the dielectric loss is 0.001 6.