The Zhujiang (Pearl) River Delta is one of the most developed Extended Metropolitan Regions (EMR) in China.With the rapid urbanization,the agglomeration of population and industries has emerged,which has led to dramatic changes of spatial structure and land use in this region.With data of high resolution TM remote sensing images and Google Earth maps,this paper identified and analyzed the spatial pattern of the Zhujiang River Delta EMR using Envy and ArcGIS tools.It was found that 1) the industrial land uses were expanding substantially,particularly on the bank sides of the Zhujiang River estuary;2) large-scale housing developments were concentrated in the fringe of metropolitan areas such as those of Guangzhou and Shenzhen;3) a regional transportation network with the spatial pattern of ″1 circle +2 pieces + 3 axes″ had significantly affected the location choice of manufacture enterprises.At the same time,both highly specialized land use and severely mixed land use patterns were identified.As a consequence of the latter,land use efficiency of the whole EMR areas was reduced.Moreover,ecologic and environmental problems were severe.Based on the above analysis,suggestions were given from the viewpoint of spatial safety,land use efficiency,and the reorganization of spatial structure in the Zhujiang River Delta EMR. The Zhujiang (Pearl) River Delta is one of the most developed Extended Metropolitan Regions (EMR) in China. What the rapid urbanization, the agglomeration of population and industries has emerged, which has led to dramatic changes of spatial structure and land use in this region.With data of high resolution ™ remote sensing images and Google Earth maps, this paper identified and analyzed the spatial pattern of the Zhujiang River Delta EMR using Envy and ArcGIS tools. It was found that 1) the industrial land uses were amplified substantially, particularly on the bank sides of the Zhujiang River estuary; 2) large-scale housing developments were concentrated in the fringe of metropolitan areas such as those of Guangzhou and Shenzhen; 3) a regional transportation network with the spatial pattern of “1 circle +2 pieces + 3 axes ”had significantly affected the location choice of manufacture enterprises. At the same time, both highly specialized land use and severely mixed land use patterns were i dentified. As a consequence of the latter, land use efficiency of the whole EMR areas was reduced. Moreover, ecologic and environmental problems were severe.Based on the viewpoint of spatial safety, land use efficiency, and the reorganization of spatial structure in the Zhujiang River Delta EMR.