The Li 2 ZnTi 3 O 8 ceramics with MgO–B 2 O 3 –SiO 2 (MBS) addictive have been prepared by the conventional solid-state ceramic route. The effects of MBS glass on the sintering temperature, microstructure and microwave dielectric properties of Li 2 ZnTi 3 O 8 ceramics were investigated. The X-ray diffraction results showed that Li 2 ZnTi 3 O 8 doped with MBS glass was a single-phase without forming secondary phase. It was found that the addition of MBS to the Li 2 ZnTi 3 O 8 ceramics effectively lowered the sintering temperature from 1075°C to 900°C while maintaining good microwave dielectric properties. Especially, when the glass content was 2.0wt%, the ceramics sintered at 900°C for 4h exhibited excellent microwave dielectric properties: ε r =25.0, Q׃=56,200GHz, τ ƒ =−9.9ppm/°C.