Abstract: Faulting destroying oil and gas accumulation is a widespread phenomenon.Based on the analysis of typical cases about faults destroying oil and gas accumulation in this paper,its mechanism is studied,and its classifying index system is determined.It can be divided into three categories,nine subcategories and twenty-seven types.Then,four models of faults destrotying oil and gas accumulation are established,and the geologic concept models and mathematical models for its quantative evaluation are suggested.