Lanthanum chromate (LaCrO3) is a new type of functional material that can be used as a high-temperature electric furnace heating element in an oxidizing atmosphere. It can be used for a long time at high temperatures of 1500-1800 ℃, with a resistance change of less than 5%. It has good corrosion resistance and chemical stability, and is easy to achieve precise temperature control. It can be used for more than 4000 hours below 1750 ℃. Mainly used for precision ceramic sintering, high-temperature single crystal material preparation, material high-temperature performance measurement, gemstone discoloration treatment, and other aspects. It has great development prospects in fields such as fuel cells, thermistors, high-temperature conductive coatings, and photocatalysis.