Abstract: Law of the People′s Republic of China on National Parks(abbreviated as National Park Law)was passed on September 12, 2025, and came into effect on January 1, 2026. Through "target words" and "semantic analysis", its legal provisions can be categorized into "personal legal interest" clause, "social legal interest" clause and "national legal interest" clause. Specifically, "social legal interest" clause accounts for 46.7%, "national legal interest" clause accounts for 37.69%, and "personal legal interest" clause accounts for 12.28%. Compared to the legal interest structure in environmental protection regulations, the National Park Law exhibits a "three-dimensional integrated" legal interest structure ordered as "society-state-individual". It stems from the social right function that environmental rights serve within the civil rights system. Furthermore, the National Park Law demonstrates a normative convergence between "social legal interest" clause and "national legal interest" clause, attributed to the field-specific legislative techniques employed in national park legislation. The "change of legal interests" characteristic of this law, compared to other environmental protection laws and regulations, arises from the socialization trend of the implementation of environmental protection responsibilities. As a new legal document, the legislative effect of the National Park Law requires practical validation. Looking ahead, the setup of the three types of legal interest clauses in this law should not remain unchanged. Instead, it should incorporate a perspective of "national governance modernization", leveraging the modernization of Chinese-style national park governance as an opportunity. Based on the actual needs of national park construction, a third-party post legislative evaluation should be conducted to assess legislative effectiveness, allowing for timely optimization and upgrading of the content and quantity of the three types of legal interest clauses. While fully utilizing the legal confirmation and value guidance functions of "national legal interest" clause and the social order maintenance and normative integration functions of "social legal interest" clause, attention must also be given to the structural deficiencies of a lower proportion of "personal legal interest" clause and the lack of "sanctions". To address this, supportive systems or implementation rules should be established, the law enforcement procedures and supervision procedures of national parks should be improved, and relevant implementation measures and management regulations should be formulated by the National Park Administration to effectively protect the individual rights and interests of citizens.