A series of dense ceramic samples in the (1 -x)BiVO 4 -xLi 0.5 Re 0.5 WO 4 (Re = La, Nd; 0.05 B xB 0.11) has been prepared by using the traditional solid state reaction method. A single solid solution phase with monoclinic structure is formed through the entire compositions and the unit cell volume increases linearly with x. When x = 0.09, the composition of 0.91BiVO 4 -0.09 Li 0.5 La 0.5 WO 4 readily sintered at 750°C shows good microwave properties with e r of 76.7, Q 9 f of 6789 GHz and s f of 7.3 ppm/°C. As x = 0.08, the 0.92BiVO 4 -0.08Li 0.5 Nd 0.5 WO 4 ceramic sintered at 750°C possesses excellent microwave dielectric properties of e r = 71.8, Q 9 f = 7482 GHz and s f = 0.8 ppm/°C. These ceramics have applications for microwave devices requiring high permittivity and ultra-low sintering temperature.