The citric resin method is used to prepare stoichiometric, homogeneous and fine barium titanate powders. The elaboration process is described in detail. Powders are characterized by several methods such as R-ray diffraction, scanning and transmission electron microscopy, thermogravimetric measurements and infra-red absorption and X-photoelectron spectroscopies. Residual carbon content is quantified by nuclear technics and Rosemount method, Raw powders contain small quantities of barium carbonate and residual carbon.