Abstract: Lead titanate series ceramics are important functional materials and are widely used in piezoelectric field. The ceramics are difficult to sinter and polarize, and the piezoelectric property is relatively low. The sintering and piezoelectric properties are research focus at present. The research status of modifying lead titanate series ceramics by element doping and component addition to improve the sintering property and piezoelectric property, and the application of modified ceramics are reviewed. The future research directions are pointed out, including optimization of sintering process, element composite doping and composition design of quasi-homotype phase boundary.