College students who have reached the legal age for marriage and are not related by blood between men and women can get married. The legal marriage age in China is that boys should not be earlier than 22 years old and girls should not be earlier than 20 years old. It is illegal to get married under the age of marriage, which violates the mandatory provisions of laws and administrative regulations and the marriage relationship is invalid from the beginning.

Legal objectivity:

Article 1047 of the Civil Code stipulates that the age of marriage shall not be earlier than 22 for men and 20 for women. 1048th lineal blood relatives or collateral blood relatives within three generations are prohibited from getting married. Article 105 1 A marriage is invalid under any of the following circumstances: (1) bigamy; (2) Having a family relationship that prohibits marriage; (three) did not reach the legal age for marriage.