$Mn{1-X}Fe{2+X}O_4, Mg_{1-X}Fe_{2+X}O_4$ (x=0.0, 0.025, 0.1, 0.2) for negative temperature coefficient (NTC) thermistor was prepared by calcination at $800^{circ}C$ and sintering at form 1100 to $1250^{circ}C$ with $50^{circ}C$ intervals. The best linear property was obtained in the Mn-based sample sintered at $1200^{circ}C$ with x=0.0 composition. Temperature coefficient of resistance, $alpha$, was $-5.6%/^{circ}C$ in the Mn-based sample, $-5.2%/^{circ}C$ in the MM-based sample, and $-1.6%/^{circ}C$ in the Mg-based sample. thermistor parameter, B, was in the range of 2665~7780 K. The results show the possibility that Mn-Ni-Co based thermistor could be substituted by the composition used in this study.