The faults in volcanic rocks of the Tahe area can be classified into three types based on the interpretation of the seismic profiles: deeplayer faults, shallowlayer faults and microfaults within the volcanic rocks. Through compiling faulting distribution map, the fault characters, formation periods, distribution characteristic and origin of the volcanic rock in the Tahe area have been analyzed. It is believed that the deeplayer faults，mainly thrust faults, were formed during the period of Caledonian and Hercynian stages. These faults trending NNE, NE and NNW are distributed in the north and northwest parts of the Tahe volcanic area. The shallowlayer faults, mainly normal faults, were formed during the period of Yanshan and Himalayan Stages. The faults trending NE and NNE are distributed in the volcanic rocks near the salt margin and upsalt volcanic area of the southeast part. The microfaults within the volcanic rocks, developed in the top of volcanic rocks much more than that in the bottom of volcanic rocks, mainly distribute in the western part of the Tahe area. Three oilgas trap types of volcanic rock have been classified according to the origin of the volcanic reservoir and structure. They are the traps controlled by structural fissures, leaching and weathering, the traps controlled by paleouplift, unconformities, leaching and weathering, the traps controlled by burieddissolving, erosion and structural fissions. The conditions of the caprocks and hydrocarbon accumulation of volcanic beds have been analyzed. It is indicated that mudstone of Ketuer formation of the bottom Triassic may be an effective regional seal bed. The favorable hydrocarbon accumulation conditions may exist in the volcanic beds in the Tahe area, Tarim Basin.