The CaMoO4-xY(2)O(3)-xLi(2)O ceramics were prepared by the solid-state reaction method. The sintering behavior, phase evolution, microstructure, and microwave dielectric properties were investigated. CaMoO4 solid solution was obtained when x = 0.030, and two-phase system including tetragonal CaMoO4 phase and cubic Y2O3 phase formed when 0.066 <= x <= 1.417. A temperature stable CaMoO4-based microwave dielectric ceramic with ultralow sintering temperature (775 degrees C) was obtained in the CaMoO4-xY(2)O(3)-xLi(2)O system when x = 0.306, which showed good microwave dielectric properties with a low permittivity of 9.5, a high Q(f) value of 63 240 GHz, and a near-zero temperature coefficient of resonant frequency of +7.2 ppm/degrees C.