Clusters risk is the key factor in regional economic development. However, it’s hard to study the evolution and risk of cluster network structure directly due to the dynamic of complexity of structure and research process. In this paper, we find the clusters network structure coupled with the complex networks model and build clusters structure model by the simulation method. Also, we portrait different kinds of clusters structure evolution processes based on two risk types by the three indices. The preliminary results indicate that: 1) Evolution processes and results differ significantly confronting different exogenous risks and endogenous risks, which lead to different risk robust. 2)Subject to exogenous risks, the distribution of risk robust is: Center-satellite Cluster> Integrate-based Cluster> Market-based Cluster; 3) Subject to endogenous risk, the distribution of risk robust is: Market-based Cluster > Integrate-based Cluster> Center-satellite Cluster.