Recent years, complex networks have provided a natu ral framework to describe a variety of large system s in many fields of science. In this paper, from the research aspect in chemical science, empirical researches o f basic fuchsin adsorbed on gallium phosphide (GaP) agglomeration n etwork have been done. We applied complex network t heory to analyze the topological structure characteristic s of the agglomeration network, and explain that wh y intensity of Raman spectrum is different in different location o f the same surface of specimen through complex netw orks theory.