Abstract: Researches on urban spatial pattern at national scale from the viewpoint of socialeconomic development have made very valuable progresses, but the spatial relationship between urban spatial pattern and natural ecological pattern at national scale has not been greatly paid attention. Natural ecological safety is constitutive of the current era of urbanization and must be linked to urban spatial development. A better understanding of the sustainability of urban development must rely strongly upon available information about the causes, chronology, and effects of urbanization. Therefore, this paper analyzed the spatial pattern of urbanrural construction land in natural ecological regionalization. By the overlay analysis of natural ecological units and urbanrural construction land, the paper revealed that, in the ecological function areas (The First Level), the areas of ecological regulation function are distributed most widely in China’s northwest, southwest, and northeast ecological fragile areas, with a minimum ratio of only 069% in total area of urbanrural construction land. The urbanrural construction land area with ecological supply function accounted for 274% in total area of urbanrural construction land. The urbanrural construction land with habitat security function smallest area is concentrated in the eastern coastal areas of China, but accounted for the largest, up to 1120% in total area of urbanrural construction land. The spatial differences of urbanrural construction land in the natural ecological units are linked to the natural characteristics of natural geometry and river basins. The function areas including cities groups habitat, agricultural products supply and soil conservation regulation occupy 7954% of the total urbanrural land which is located in the plain, river networks, Karst hills, and Danxia geomorphology area mainly in southeastern Hu line. The areas of habitat security function are mostly distributed in the CircumBohai Sea Economic Zone, Yangtze River Delta and Pearl River Delta. There are several city groups and many developed towns in the surrounding area. The three areas with the function of habitat security have the greatest area of urbanrural construction land which has been very rapidly expanded around the large cities and taken up a large number of cultivated land and natural landscape. The urbanrural construction land distribution pattern is also consistent with the distribution pattern of China’s three major geomorphologic regions. The above results are expected to reflect the spatial interdependent relationship between human and environment systems, but in recent years, the expansion of urbanrural construction has been driven by the development demand expansion and the progress of engineering technology. The paper provides the basic information for the sustainable development of urbanrural areas and the construction of ecological security pattern in the context of the new urbanization, and also provides technical support for the identification of urban spatial organization and evolution mechanism in china. Key words：urbanrural construction land; spatial pattern; natural ecological units; China