The high school curriculum for geography has always been broad and diverse because the nature of geography is rooted both in physical and social sciences. The recent reduction in the teaching time of geography has called for more effective learning and teaching strategies. This study intends to explore the use of concept mapping in teaching geography in high schools. To be more specific, the aims of this study are two folds: first, it examines how high school students integrate the geographical knowledge they learn into their cognitive structure thus promoting more meaningful learning; and second, it analyzes how concept mapping can be used as a practical teaching strategy in high school in Taiwan. In this paper, I will first approach the underlying theory of concept mapping, and the construction method, style and assessment. Second, I will associate the geographical concept with concept mapping, Constructed are three-part model for scaffolding concept mapping: understanding of the concept, understanding the relationship of interaction and understanding of the causation. Among these, the understanding of causation will be illustrated through primary geographical conception, location, interaction, distance, scale, change and other factors. Furthermore, different styles of concept maps could be corrdinated and applied in different geographical topics. Fox example, the tree-type concept maps can be used for hierarchically compound type of concepts topics that have no causal relationship; circulate-style maps can be used for the closed-type concepts topics that have causal relationship; the net-type concept maps can be used for the integrative type of concepts topics that have both hierarchical and causal relationship. Gowin’s knowledge Vee map when coordinated with concept mapping is mostly practical in teaching problem-solving topics, and will enable the teachers to understand every learning phase in student’s learning process. Finally, two examples will be use to illustrate concept mapping as a teaching strategy by adopting high school textbook materials for systematic geography and regional geography.