[Objective] The paper tries to demonstrate the reasonableness and legality of Doctors ’Right of Intervention. [Methods]By comparing life divine principle and patient autonomy principle to analyze the value ranking. By data col ection, study the relevant provisions of Doctors ’Right of Intervention at home and abroad. [Results] Life divine principle demonstrates the reasonableness of the Doctors ’Right of Intervention, and the right to life and health in Constitution demonstrates the legality of the Doctors’Right of Intervention. [Conclusions] Doctors’Right of Intervention is reasonable and legal, so when patients or their family members make wrong or harmful choice in treatment, doctors should exercise the Doctors ’Right of Intervention without hesitation to help them to choose the right way or make decisions for them.