Abstract: The VLSI (Very Large-Scale Integration) circuit is becoming complicated and dense than ever before due to the rapid development. In the paper, we study the complex network characteristics of the integrated circuits based on IBM-HB+ Benchmark suits.The experimental results show that the cumulative degree distribution of IBM-HB + Benchmark follows Gaussian distribution which indicates the network belongs to single-scale network. In the same time, the networkhas a small-world property because its clustering coefficient is averagely 28.51 times of the same scale random network.