Abstract:As an ecological place for national recreation and education, national parks can meet national deep tourism needs . Taking the shennongJia National park as an example, the authors analyzes science popularization needs of national park from three aspects:content, means and form . Based on the experience, knowledge, skills, values and management sci- ence interpretation goals, it constructs the explanation supply and explanation based on the elements of the mass communi- cation system . The National park science Interpretation system is composed of four subsystems of content, commentary media, and audience,and has designed the operation model of the science Interpretation system to realize the optimization of the science Interpretation system .