Binary solid solutions 0.7 BiFeO3 - 0.3 BaTiO3 - x mol% La203 ( X = 0.6, 0.8,1.0, 1.2 ) are prepared by the traditional ceramics process. The phase structures of all ceramics samples are of pure and steady Perovskite phase, and no other phases are found. With the increase of La doping amount, the grain size of the ceramic is decreased, the Curie temperature is gradually dropped. The coercive field of the samples is decreased and the dielectric loss is gradually lowered.