The tight sandstone gas resources of the 2nd Member of Xujiahe Formation in Xinchang area of the western Sichuan Depression have great potential，but the fine description of the range of fault-fracture bodies is a technical difficulty that restricts exploration and development. On the basis of seismic，core，and imaging logging data as well as seismic attribute technology，seismic predictions were made for the fault-fracture bodies in the 2nd Member of Xujiahe Formation in Xinchang area，and the geological development modes of fault-fracture bodies were summarized. The results show that the faults in this member are undeveloped and are mainly anticlines，with an overall NE/NNE trend，and the third-and fourthorder faults are developed in the east，mainly in NE，near EW，and near SN trends. The fractures found in this member are controlled by the third-and fourth-order faults. With an EW trend，the fractures are dominated by flat fractures（<10°）and low-angle fractures（10°-30°）and are most widely developed in the upper sub-member sand group T3x2-2 and the middle sub-member sand group T3x2-4. The fractures can be divided into fault-related and fold-related fractures：For fault-related fractures，the seismic attribute of thin likelihood can objectively describe the fault slip surface，and the seismic attribute of chaos can depict the fault fractured zone and induced fracture zone；for fold-related fractures，the seismic attribute of curvedness can describe the development area of fold-related fractures.Furthermore. The fault-fracture bodies in the 2nd Member of Xujiahe Formation can be classified into fault-fracture bodies，fault-fold-fracture bodies，and fold-fracture bodies，among which the fault-fracture and fault-fold-fracture bodies are the most widespread and are mainly distributed near the faults in the east，while fold-fracture bodies are developed locally，usually with a small distribution range.