In complex network attacks,the lack of a reliable evidence for decision-makers in attack planning makes it difficult to achieve mission objectives in action.A scientific method for evaluating the complex network node attacking effect is presented.By analyzing the income,loss,and risks of the attacker,we established the corresponding index systems.TOPSIS method was used for making comprehensive assessment and sorting to the attacking effect of the nodes in the network.It can overcome the one-sidedness shortcoming of the traditional node selection method,i.e.,relying on a single indicator of network topology.The study supplies a scientific basis for scheme making in network attacking.