The modified BaTiO₃ ferroelectric materials are suitable for pyroelectric applications. This paper reports the structural, dielectric and electrical properties on copper influence in BaTiO₃ when it was substituted site “A” of perovskite structure of BaTiO₃. Copper has been chosen for modified BaTiO₃ with different concentrations with stoichiometry Ba_1-xCu_xTiO₃, where x = 0.01%, 0.02%, 0.03% and 0.04%. The X-ray diffraction patterns of the samples doped with different composition of CuO are found to be that the positions and intensities of the diffraction peaks are similar and no secondary phases were observed. The Curie’s temperature (T_c) for all CuO doped BaTiO₃ with were found to be in the range of 120°C to 125°C. The frequency dependence of relative permittivity (ε_r) and dielectric loss (Tanδ) of Ba_1-xCu_xTiO₃ samples at room temperature were reported in the range 100 KHz - 1 MHz. The temperature dependence of D.C electrical resistivity studies were reported for all samples indicating that the participation of Cu²⁺-Cu⁺ ions in the conduction process around their Curie’s temperature.