Abstract: Self-organized mechanism is one of many reasons which can explain system building. For simulating the network formation in the real world, this paper proposed a network evolution model based on local world and self-organized mechanism. It discussed the model's topological properties, including clustering coefficient, betweenness centrality, efficiency,reachability,biggest cluster size and cluster diameter. The results show that the model can tolerate random failures and intentional attacks very well.

Key words: Network modcl,Loca1 world,hopological property,Fault tolerance