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A temperature stable Li2Zn0.95(SrxCa1-x)0.05Ti3O8 (0≤x≤1) ceramics were fabricated using a conventional solid-state route sintered at 1100 ℃ for 4 h. The XRD results indicate that the main phase Li2ZnTi3O8 and secondary phase including SrxCa1-xTiO3 (0≤x≤1) solid solution and TiO2 co-exist in composite and form a stable composite system when the (CaxSr1-x) (0≤x≤1) substitutes for Zn of Li2ZnTi3O8 ceramic. As x is increased from 0 to 1, the relative permittivity (εr) increases from 26.65 to 27.12, and the quality factor (Q×f ) increases from 63300 to 66600 GHz. With the increased of x, the temperature coefficient of resonant frequency (τf) increases from 0.27 to 8.23 ppm/℃, and then decreases to 3.51 ppm/℃. On the whole, the Li2Zn0.95(SrxCa1-x)0.05Ti3O8 (0≤x≤1) ceramics show excellent comprehensive properties of middle εr = 25-27, higher Q×f ≥ 60000 GHz and τf ≤±8.5 ppm/℃.