A model of risk assessment based on Fuzzy-AHP(FAHP) is introduced to the estimation of the information security. The important degree of each risk factor is judged in the aspects of the subjective assessment and tools inspection. By utilizing fuzzy preference programming method, the risk value of each factor is calculated. Next the quantitative risk degree of the target system is calculated, and the veracity of risk assessment is improved. The study case of the assets value shows that the model can be easily used to the risk assessment of the i...