Based on the analysis of the characteristics of disaster resistant engineering project, the principles of project appraisal of disaster resistant engineering are given. The affirmation and measuring of costs and benefits of disaster resistant engineering project are discussed. It offers bases for study of theory and methods of disaster resistant engineering project appraisal. Based on the analysis of the characteristics of disaster resistant engineering project, the principles of project appraisal of disaster resistant engineering are given. The affirmation and measuring of costs and benefits of disaster resistant engineering project are discussed. It offers bases for study of theory and methods of disaster resistant engineering project appraisal.