$BaTiO_3$ dielectric ceramics are widely used to multi-layer ceramic capacitor. The $BaTiO_3$ powder was synthesized at $950^{circ}C$ by using a solid state reaction and grinded by using a high-energy mill. And then, 2.53 wt% glass frit was added to the synthesized $BaTiO_3$ powders for lowering the sintering temperature. The mixed powders were sintered at various temperatures of $1170^{circ}C$, $1200^{circ}C$, $1230^{circ}C$. Microstructures of the sintered $BaTiO_3$ ceramics were inspected by SEM and crystal structures were analyzed by XRD method. The relative dielectric constant was measured by using a impedance/gain phase analyzer. The synthesized $BaTiO_3$ powder had the tetragonal perovskite structure without secondary phase and the particle size was below 200 nm. The relative densities measured at the samples sintered at the temperature above $1200^{circ}C$ were about 95%. The relative dielectric constant showed maximum value of 2310, which was measured in the specimen sintered at $1200^{circ}C$. From these results, we could know that the added glass frit had effects on both lowering the sintering temperature and improving the dielectric property.