We propose a novel capacity model for complex networks against cascading failure. In this model, vertices with both higher loads and larger degrees should be paid more extra capacities, i.e. the allocation of extra capacity on vertex i will be proportional to k<Subscript>i</Subscript> <Superscript>γ</Superscript> , where k<Subscript>i</Subscript> is the degree of...</subscript></superscript></subscript>