Twelve masks are props used by Baima Tibetans in primitive sacrificial activities. In addition to animals such as lions, dragons, tigers, bears, cows, leopards, snakes and phoenixes, there are ghosts such as male ghosts and female ghosts, whose meanings are different from those of the zodiac. In the twelve phases, the lion head is the commander in chief, because the white horse people think that the lion is the king of all animals.

Because of the different tribes, the masks used in Twelve Dances are slightly different in animal species, but most of them are the same. Most of them are fierce and exaggerated. Among them, the imp imitates a portrait with a red face and heavy eyebrows, which symbolizes great power; With a big mouth and a pair of horns on his head, it looks fierce and can play the role of exorcism. The animal heads of wood carvings are painted in red, yellow, green, blue, black and other colors, especially the corners, mouths and eyes.