In this study, the xLaCrO(3)-(1-x) Mg(Al0.7Cr0.3)(2)O-4 (x = 0.1, 0.2, 0.3, 0.4) negative temperature coefficient composite ceramics were fabricated through conventional solid state reaction at 1650 C-circle. X-ray diffraction analysis has revealed that the sintered ceramics are consisted of cubic spinel Mg(Al0.7Cr0.3)(2)O-4 phase and orthorhombic perovskite LaCrO3 phase. The obtained values of rho(300) and B-400/800 and E-a are in the range of 1.55 x 10(2)-1.41 x 10(8) Omega cm, 756-11317 K, 0.065-0.976 eV, respectively. The electrical properties of these ceramics can be adjusted by the LaCrO3 contents. Such ceramics could be suitable for high temperature NTC thermistor application.