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According to Chen Lin"s theory of topological perception, Visual primitives from the whole to the part, topology-aware is preferred.This study based on Bionic principles, perceptions shape the object topology information. First three dimensional contour extraction information in addition, graphic map outline dimension to a two-dimensional projection plane processing; establishment of mathematical model for extraction of topological characteristics of spatial pattern.Topological space homeomorphic maps to the outline (Hausdorf, or metric space or) two-dimensional projection plane, keeping topological invariance, thus facilitating analysis of topological characteristics may continue to apply principle of topological maps and analysis of point set topology. Eventually, topological features match the repository model, identify objects.