[ $TiO_2-V_2O_5$ ] sol was prepared using sol-gel method. Sol changed to gel with hydrolysis and polymerization. DTA properties of gel powder had endothermic reaction due to evaporation of propanol about $80^{circ}C$, had exothermic reaction due to combustion of propanol about $230^{circ}C$ and had exothermic reaction due to combustion of alkyl group about $350^{circ}C$. Crystalline properties of gel powder retained amorphous phase at $50^{circ}C$, retained anatase phase from $400^{circ}C;to;600^{circ}C$ and had all rutile phase over $700^{circ}C$ at 0.01mole $V_2O_5$ additive. The capacitance of thin films increased with increasing heat treatment temperature and thin films had best properties at $700^{circ}C$. The capacitance of thin films increased a lot with decreasing measurement frequency.