Abstract: Through an assessment of a large number of legal cases involving adoptions of an heir, the author finds that magistrates cleverly wielded their administrative authority to intercede in the adjudication of legal cases in Qing period .They possessed full freedom of jurisdiction on cases and could provide judicial remedies according to individual circumstances and traditional ethics of the Confucianism, in order to realize the maximum social justice .Thus not only safeguarded legally protected traditional ethics and the essential beliefs of the people, but also safeguarded the rights and interests of t he individual to certain extent.