Abstract: The inherently safety of chemical process is an effective means to inhibit accidents in the production of chemical industry. Firstly, the basic strategy of inherent safety concept was summarized and the connotation of the risk-based process safety technology system and the intrinsic relationship between them were expounded. Then, the developments and implementation cases of inherently safer technologies in chemical process were systematically introduced from four aspects: Inherently safer process technique, risk perception, risk monitoring and early warning, risk management and control. Finally, the situation of safety in the filed of chemical industry in the future was analyzed and predicted, also the major direction of the research and development of inherently safer technology was prospected.

Key words: Inherent safety, risk, monitoring and early warning, process intensification