In this paper,the ALARP principle for acceptable risk assessment of oil and gas pipeline and the method of defining tolerance limit and neglectable limit of risk are described through combining the FN criteria,the acceptable risk probability standard values by adopting category zoning and acceptable risk assessment index standard scores are defined by using ALARP utility function theory.

The public drought risk acceptance in the Sichuan-Chongqing region,is initially discussed,based on the review of previous achievements through field survey and interviews,which has multi-angle of view,such as the public acceptable of loss and frequency of drought risk,the risk acceptance judgments,the disaster avoidance intention under the assumptive drought risk scenes.