Abstract: By adjusting distributive justice through social utility the consequentialism-oriented Rights-Duty Paradigm have pithily explained the legitimacy and rationality of the statutory duty to rescue. This should establish the jurisprudential basis for the statutory duty to rescue in school sports activities. Meanwhile this should set the scope of the statutory duty to rescue within the framework of Sports Law and Education Act. With the help of comparative case, the paper analyzes the rescue obligation in American school sports activities, including three rescue standards, four classifications of exemption clauses as well as the implementation requirements.