A comprehensive understanding and scientific evaluation of natural disasters risk is not only the basis of disaster prevention and mitigation，but also the urgent needs of the economic and social sustainable development. Disaster risk evaluation index system in accordance with Henan Province reality was constructed，which contains 5 secondary indicators and 23 three-level indicators；Moreover，the universal risk evaluation model was designed combined with nonlinear damage evaluation method；Then the disaster risk of 18 districts of Henan Province was evaluated，as well as the urban risk ranking and risk map of 16 districts were presented. The evaluation results can make us see the urban risk situation clearly and intuitively，which helps the related department to clearly focus on their work，as well as provides theoretical guidance for the local disaster prevention and mitigation planning.