Abstract: The exploratory decision analyses based on a prediction of the petroliferousness in traps,the study of the performance parameters in the process of oil/gas discovery involved in different exploration programmes and finally to make a most satisfactory choice among various exploration programmes,constitute an important premise for a reasonable strategic deployment of exploration.With the decision analyses relat-ing to trap and regional exploration,the priority traps and blocks in Kuihuadao structure are selected for further exploration.