The science of human settlements advocated by Mr. Wu Liangyong is important for analyzing and understanding the law of urban spatial development and making sound urban spatial planning at the macro level. According to the theory, human settlements refer to the human-centered living environment that covers both man and other living beings and people’s living systems. Any human settlement is founded on the following five aspects: ecology, economy, technology, society and human and culture. Drawing on the idea of systems science, the theory proposes a new methodology for the study of urban spatial development at different levels, believing that human settlement is a complex giant system composed of the five levels of the globe, regions, cities, communities (villages and towns), and architectures, which demands a coherent and comprehensive research method, and that the study of cities and regions should be regarded as a science about the whole and wholeness. The discourse of spatial planning at the regional (including national) level focused on the experience of the Netherlands, stating that there is a certain correlation between the resource conditions and population density of the country on the one hand, and the impact of national policies on the region on the other.