The purpose of this study is to find the spatial factors affecting natural movement. To get the real mevement data in a controled environment, virtual walking tester was constructed. The result of movement pattern through the experimental model was analyzed with VGA(Visual Graph Analysis) and agent-based simulation analysis in Depthmap. The spatial factors that would be related with natural movement are as follows. First, natural movement might be more affected by positive objects rather than negative space itself. Second, natural movement has no relevance to the global spatial structure. It would be rather related with local environmental variation and object distance. And the agent-based simulation considering occlusivity could not represent the natural movement. Finally, natural movement should be considered as a sequential process by cognition of continuous spatial variation, not by stochastic selection of walkable space.