Lanthanum chromate ceramics have been widely used in many fields because of their excellent properties. Dense lanthanum chromate ceramics can be used as the solid oxide fuel cell connector materials for high temperature. This paper reviewed the synthesis method of lanthanum chromate powder such as the solid phase method, sol-gel method, combustion and hydrothermal method, and also analyzed the reasons for difficult densification of lanthanum chromater ceramics. Based on current preparation methods, a variety of new sintering methods for densification of lanthanum chromate ceramics were investigated. At the same time, the progress of the improvement of electrical properties was investigated by doping modification at different positions, compositing and other methods. At last, the future research and development directions were prospected.