The natural education is a powerful grasp and important content of ecological civilization construction. The protected area has good endowment of the natural resources, which provides activity site and educational resource foundation for natural educational practice. On the basis of defining and analyzing the concept and connotation of natural education and natural educational resource, this paper put forward the classification scheme of natural educational resources in the protected areas, including 3 main categories of natural things, activity sites and natural culture, 9 subcategories and 48 basic types. We constructed an evaluation system of natural educational resources from educational value, resource quality and development conditions with 10 indicators by using Analytic Hierarchy Process and Delphi Method. Finally, as an example of Shennongjia National Park, we classified and evaluated its natural educational resources. The results show that the classification scheme and evaluation system of natural educational resources constructed in this study are scientific, universal and operable, which can be popularized in the investigation, classification and evaluation of natural educational resources in protected areas, and provide scientific reference for the development and utilization of natural educational resources in the protected areas.