that belongs to labor migration (1) relative migration: that is, immigrants who go through the settlement procedures by virtue of their kinship status and legal provisions for going to a country or region. For example, the kinship between parents, children, siblings and spouses, the kinship caused by marriage and the kinship caused by adoption can all constitute the conditions for relatives to immigrate. Relatives migration includes: ① Family reunion migration: Family members here generally refer to spouses and unmarried children, and some also include married children. Fiance (wife), and other countries include grandparents, parents, children, brothers and sisters, grandchildren and so on. As long as the existence of family relations conforms to the prescribed scope and the basic conditions (such as age) of family members meet the requirements, they can go through the settlement procedures by means of family reunion and immigration; (2) Assisted immigrants: immigrants with other relatives who do not belong to the scope of family reunion immigrants are generally assisted immigrants; ③ International adoption relationship immigration: Due to the establishment of adoption relationship, the relationship between adoptees (mainly minors) and adopters is also considered as a special kinship. Therefore, this form of immigration is called international adoption immigration; 4 Marriage migration: because of the establishment of marriage, one party settled in the other party, which is called marriage migration. (2) Professional and skilled migration: also known as independent migration, refers to professional and technical personnel, such as experts, professors, engineers, craftsmen, people with special professional and technical skills or people who have made great contributions in a certain field, who can apply for professional and skilled migration on the condition of their special skills. (3) Investment immigrants: that is, independent immigrants who apply to another country to invest in enterprises or businesses based on their own economic strength and achieve the purpose of settling in that country. (4) Labor migration: refers to workers or farmers with certain technical skills and other specialized industries, such as chefs, technicians and repairmen, who settle in another country or region. (5) Nationality immigrants: also known as nationality-recognized immigrants. Citizens who were originally born in a foreign country naturally acquire the nationality of that country because of the laws of the country where they were born. Therefore, if they give up the nationality they have acquired and restore the nationality of their birthplace, then they are immigrants with nationality or immigrants with nationality recognition. (6) Political immigrants: People who have taken refuge and settled in another country due to political, religious, racial and natural disasters are called political immigrants or refugees. (7) Visa conversion immigration: refers to the person who has obtained a non-immigrant visa and is approved by the host country to convert the non-immigrant visa into an immigrant visa after arriving in the host country and meeting the conditions for immigration for some special reasons.