Hukou, also known as household registration, is the general name of hukou and population, with family as hukou and population as population. The carrier of household registration is the household registration book, which is a legal document made by the household administration department of the public security organ to record and retain the basic information of the registered population.

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Hukou is a legal concept with a history of more than 2,000 years in China. Cihai (version 1989) has six interpretations of the meaning of household, two of which are generalizations and abstractions of the concept of household in household registration management. In China's current household registration management, those who establish households, that is, those who have "consanguineous marriage or adoption relationship", are called family households, while those who establish households, that is, those who live in government agencies, organizations, schools, enterprises and institutions or public dormitories with industrial ties, are called collective households. Family household is the most important form of household registration management.

Hukou is also a legal concept, and the combination of Hukou began in Historical Records written by Sima Qian in Han Dynasty, and it has been used ever since. Family is a social group composed of people. Only one person in the family can be called a family. Man is the life entity of the family, and man takes his mouth as the unit of measurement. What we usually call hukou includes both family hukou and collective hukou. However, household registration must have a specific address. Only when the person and address are merged and registered by the household registration authority can they be legally recognized as household registration.

Household registration refers to the Register of Household Registration and Cihai (version 1988). The so-called register book is commonly known as "hukou book" or "hukou book". Household registration in China has been designed and formulated by government departments since ancient times, so household registration is also a legal name. The household registration book is the legal certificate of household registration. Those who fail to fulfill their household registration cannot be considered as having household registration. 1958 issued the "Regulations on Household Registration in People's Republic of China (PRC)" in Article 2: "People and citizens in China shall register their household registration in accordance with these regulations. As can be seen from the above, there is no essential difference between hukou and household registration, so people often regard hukou and household registration as words with the same meaning.

Household registration management, also known as household registration management, household registration management, household registration management, household registration management, household registration management, is one of the basic concepts of household registration science, and it is a national administrative management that collects, confirms and provides basic information of registered population such as personal identity, kinship and legal address of its citizens according to law.

Generally speaking, the business of household registration management consists of three parts: premise business, main business and sub-attribute business: place name management, administrative division management (the above two items are the responsibility of civil affairs departments in China), household registration jurisdiction and household registration responsibility division, and household management. , these are the premise business of household registration management; Household registration, household statistics, household survey, household registration file management, resident identity document management, permanent population management, temporary population management, etc. , is the main business of household registration management; Population migration control and community security management. , which is a sub-attribute business of household registration management.