正当防卫的必要限度一直是正当防卫制度的核心问题,它既是正当防卫正当性的重要条件,也成为正当防卫与防卫过当的分界线,因此必要限度的正确判断在司法实践中有着重大意义。 The necessary limit of justifiable defense has always been the core issue of the system of due diligence. It is not only an important condition for justifying proper defense, but also serves as a demarcation line between legitimate defense and defense. Therefore, the correct judgment of the necessary limits is of great significance in judicial practice.