Information warfare is characterized by System of System (SoS) operation based on information.From the viewpoint of operation information and combined with the OODA command and control loop concept, the network centric model of SoS operation was established by utilizing sensor node, information station node, decision node, communication node, lethality node and information jammer node.Based on the network centric model, the characteristic parameters of complex network were extended, and the information distance and interaction tempo of operation network were proposed.The effect of different topology and operation capability distribution on the interaction tempo was analyzed through experiment, which can be used in the research of SoS operation efficiency.