Guardians of minors who have reached the age of 18 generally do not need to perform their obligations. People who have reached the age of 18 have full capacity for civil conduct and do not need guardians.
 Article 23 of the General Principles of the Civil Law stipulates that the guardian of a person without or with limited capacity for civil conduct is his legal representative.
 Article 39 stipulates that the guardianship relationship shall be terminated under any of the following circumstances:
 （1） The ward acquires or restores full capacity for civil conduct;
 （2） The guardian loses the ability to supervise;
 （3） The ward or guardian dies;
 （4） Other circumstances under which the people's court determines the termination of the guardianship relationship.
 After the termination of the guardianship relationship, if the ward still needs guardianship, a new guardian shall be appointed according to law.