In this paper polycrystalline sample of Gd/BiFeO3 (at Gd concentration X= 0.20) were synthesized in solid-state reaction process. The present study inquiries effect of temperature, frequency and addition of Gd/BiFeO3 on structural, dielectric and multiferroic properties. Crystalline nature of organized samples was definite by the X-ray diffraction procedure. The domain size calculated by scherrer’s formula is 19.64 nm. Dielectric studies are carried out at frequencies ranging from 10 Hz to 1 MHz. Dielectric analysis of the samples reveals that the samples with the lowest dielectric constant at lower frequencies. High concentrations of Gd cause an improvement in the values of dielectric continuous and dielectric loss. Asymmetric semi-circular arcs are visible on modulus a spectroscopy plot, which supports the existence of the dielectric relaxation phenomenon.The PE and MH studies are carried out at room temperature (300 K) and the values of saturation polarization (Ps) and magnetization (Ms) was found 2.256 µC/cm2 and2.614 emu/gm, respectively.