Abstract:In order to promote the research and development of safety forecasting science, and this in turn enhances the importance, reliability and validity of safety forecasting, aiming at a problem of the great lack of theoretical research on safety forecasting in the current academic, the establishment of safety forecasting science was researched based on the discipline construction. First of all, from the systematic perspective, the definition of safety forecasting was proposed based on the definitions of forecasting, and its connotation was explined. And then, the definition of safety forecasting science was put forward, and its connotation and establishment evidence were analyzed thoroughly. Finally, four basic issues in safety forecasting science (including discipline features, research content, discipline classification and discipline foundation) were systematically discussed. The results show that the essence of safety forecasting is kind of methodology of the research and practice of safety science. Meanwhile, safety forecasting science is a new interdisciplinary nterdiscipline which specialized in studying the developmental and variable rules of future safety state of system, and it is a branch of safety science is in urgent need to be established.