2. Tax system: In the Xia Dynasty, commune farmers cultivated their own 50 mu of "land" and also cultivated 5 mu of "* * * land".

Political system: slavery, enfeoffment

(Explanation) The guiding ideology of the legal system in Xia Dynasty can be summarized as "punishing heaven".

The legal concept of punishment for the crime of "Heaven" is as follows; On the one hand, the ruler's rule is based on destiny. On the other hand, rule under the banner of heaven.

The tribal kingdom of Xia slavery was built on the ruins of the primitive commune system. In the process of the gradual disintegration of the primitive commune system, the patriarchal clan system has become a destructive force to it. Hereditary kingship and hereditary nobility in slave countries are gradually developed on the basis of patriarchal clan system. Therefore, after the formation of the country, aristocratic organizations at all levels should still maintain the old blood relationship and strictly distinguish surnames. The royal family enfeoffed tribes, in addition to maintaining their own surnames, but also established new surnames with fiefs, and doctors took the city as their surnames. Among the nobles at all levels, according to the different surnames, their respective clan relations were established. Although this clan relationship follows the legacy of the old clan organization, it is actually based on the patriarchal clan system, and the hierarchical status of nobles at all levels is determined according to their class rank and family affiliation.