To obtain barium titanate ceramics with excellent microstructure and properties, barium titanate ceramics doping alkali metals ion Ca²⁺ and the rare-earth Y³⁺ is synthesized by wide-band laser sintering. By means of scanning electron micrscope (SEM), X-ray diffraction (XRD), thermogravimetry-differential thermalanalysis (TG-DTA) and TR-8401 static-of-spring, the microstructure and properties of barium titanate ceramics are characterized. The experimental results show that Ca²⁺ doped into ceramics, restrains the growth of grain size, improves temperature stability of barium titanate ceramics, prevents the hexagonal phase barium titanate and improves the curie temperature of barium titanate ceramics, while Y³⁺ doped into ceramics, makes the microstructure of barium titanate ceramics be compacted, the room temperature resistivity of barium titanate ceramics be decreased and barium titanate ceramics have characteristics of semiconductor.