The spatial planning network in government is formed through the interaction of spatial planning authorities at various levels and functions. Clarifying the relatively mature interaction between spatial planning authorities is conducive to providing empirical reference for the construction of spatial planning that corresponds to the context of China's landownership. The comparative research method and inductive deduction method are used in this paper to examine the regulatory systems of spatial planning in America and Britain from the perspective of power coordination. Based on specific legal provisions, the paper begins with a vertical perspective of power distribution between central and local governments, between neighboring local governments, and a horizontal perspective of power distribution between local governments at the same level, between relevant government departments. The paper examines the administrative context as well as the particular way in which legal provisions coordinate authorities across all levels of government and various departments. The basic discrepancies in the distribution structure of spatial planning power between the two nations were compared and revealed. The study discovered that the operation of spatial planning power in America and Britain is carried out through corresponding planning regulations, and the differences in power distribution are rooted in distinct national political backgrounds and administrative systems. According to the research findings, the construction and optimization of spatial planning regulations in China should be based on national conditions. It is necessary to clarify the basis for legislation and adhere to the principle of procedural fairness, also to coordinate the construction of planning power system and perfect the layout of regulating authorities by law. Ultimately, the effective implementation and operation of spatial planning should be guaranteed through valid law and competent governance.

不同层级与职能的空间规划权力主体相互作用形成了政府的规划运行网络,厘清国外较为成熟的空间规划权力配置关系,能够为构建符合中国地权语境的国土空间规划提供经验参考。本文采用比较研究法与归纳演绎法,以权力协调的视角剖析了美英两国空间规划法规体系,并依据具体法律条文,从纵向中央与地方政府、邻级地方政府,横向同级地方政府、政府相关部门间权力分配视角切入,剖析空间规划法规对各级政府和各类部门进行权力协调的行政背景与具体方式,对比并揭示了两国空间规划权力配置架构的根本差异。研究发现,美英两国空间规划权力的运行以相应规划法规为载体,权力配置的差异根源于不同国家的政治背景与行政体制。研究结果表明,我国国土空间规划系列法规的构建与优化应立足于本国国情,在厘清立法前提与立足程序公正原则的基础上,统筹规划权力体系建设,推进依法治权职能安排,最终以良法善治保障国土空间规划的高效实施与运行。