The lead-free perovskite (BCZT) was prepared by the Pechini polymerie precursor method. This work report the preparation of BCZT and their characterization. For the synthesis we propose the novel use of chelate agents such as: TiO(C5H8O2)2 and Zr(C5H8O2)2 as a precursor materials. Other important aspect was the chelation of Ba and Ca cations through ethylenediaminetetraacetic acid. To achieve the polymerizazio process, ethylene-glycol was incorporated to the solution.