Sr0.92-1.5xBixCa0.08TiO3 (0.155≤x≤0.195) solid solution was prepared by solid state reaction method, and fixed amounts of MnCO3 and ZnO were added as modifiers and sintering aids. The structure and dielectric properties were investigated by XRD, SEM and LCR analyser. The results show that when x≥0.165, a second phase appeares in the ceramic samples. With the increase of Bi3+ content, the dielectric constant increases first, then decreases, and the dielectric loss decreases first, then increases. When x=0.16, the capacitor ceramic dielectric material with high dielectric constant(ε=1 153), low loss(tgδ1KHz=3.5×10-4) and high insulation strength(Eb=9.37 kV/mm).