Butter oil lamp is an oil lamp with butter as the burning source, which is more common in Mongolian and Tibetan areas and has a long history. Butter is repeatedly extracted from the fat of milk or goat's milk. Butter is solid at room temperature, mostly milky yellow in color and milky white in goat milk. The butter oil lamp has stable light and melodious milk fragrance when burning, and it is one of the indispensable instruments for people to sacrifice to the gods in Mongolia and Tibet.

Butter is the essence of Tibetan food, and plateau people can't live without it. Butter is a dairy product like butter, which is a fat extracted from milk and goat milk. People in Tibetan areas like yak butter best. Yak butter produced in summer and autumn is bright yellow in color, sweet in taste and excellent in taste, but pale yellow in winter. Sheep butter is white, its luster and nutritional value are not as good as beef butter, and its taste is not as good as beef butter. Butter moistens the stomach and strengthens the spleen. It contains many vitamins and has high nutritional value. In Tibetan areas with simple food structure, it can supplement the needs of the human body in many aspects. Butter has a wide range of uses and functions in Tibetan areas, which is unbelievable if it is not seen with your own eyes.