Xi 'an, Shaanxi Province, is the capital of Sui and Tang Dynasties, and it is a concentrated place for the tombs of royal nobles, bureaucrats and landlords below the emperor. After the founding of New China, due to various infrastructure projects, about 20 tombs of Sui and Tang Dynasties were compiled and published, of which only a quarter belonged to the Sui Dynasty. Among them, the more important ones are the tomb, the tomb of Li He, the leader of Dunhuang in Sui Dynasty, and the tomb of the royal Li. Although the latter is only a nine-year-old girl, her tombs are particularly excellent. Besides the sarcophagus beautifully carved and painted with maid murals, there are also toys and precious daily utensils used by girls, as well as gem necklaces, gold and silver jewelry and so on. Judging from the figures buried with the tomb, there are two tomb guards, a tomb beast with a face and a lion's face, a group of 18 etiquette figures, four groups of 32 male and female attendants, six kinds of khufu figures and hooded figures, two little waitresses, and horses, cows, sheep, pigs, dogs, chickens and ducks. One of the pottery cows is stubborn, and a pottery pig is also feeding a group of piglets, which fully reflects the social reality of production development and vitality after the reunification of the Sui Dynasty.