10 children's toys were unearthed from the M5 tomb in the Haihunhou Cemetery.Among them,there were copper bighorn sheep,copper camel and other children's toys,they fully reflected the fact that the grassland culture and desert culture of the Northwest region and the Han culture of the Central Plains spread to the south;The family of Marquis haihun Liuhe attached great importance to Liu Chongguo's children's education,and paied attention to the use of children's toys to increase Liu Chongguo's animal knowledge,daily life skills and gender education;Judged from the childish characteristics of the unearthed children's toys and utensils and child psychology,it was preliminary judged that Liu Chongguo's age at the time of the funeral may be about 10 years old.The unearth of these children's toys had important historical and academic value for the study of the history of toys and children in the Qin and Han Dynasties.