In Tang Dynasty society,horse and cow and so on were important private and official asset,accordingly there were laws and regulations about livestock management,grazing,and the use of livestock.In the related system and laws which involved in damage compensation,there were two kinds of laws,one is to compensate the damage of private and official livestock,the other is to compensate the victims if the victimsassets were damaged by the livestock.This fact reveals that the related laws in Tang Dynasty have scientific and rational contents and are still worth learning.