Abstract: Shangjia-Taipingchuan area,as a new exploration district,is situated in the Central Depression of Songliao Basin.By deepened study on the regional structural evolution,characters of source rocks,sedimentary features,reservoir and cap rock combination,the oil and water relationship,as well as the types of oil-bearing pool and oil accumulation in the area,the petroleum geological conditions were analyzed.The results revealed that the source rocks there had a relatively good ability for hydrocarbon production and discharge.The sandbodies of distributary channel supported a good sedimentary environment for hydrocarbon accumulation,furthermore,the favorable reservoir and cap rock combination was suitable for incidence of accumulation and preservation.There was no unified oil-water boundary in the studied area.The exploration in Shangjia area should mainly focus the attention on lithological-structural hydrocarbon-bearing pools,while in Taipingchuan area should on structural-lithological pools.In the studied area,the petroleum accumulation in the Fuyu-Yangdachengzi Oil Layer was controlled by effective trap,good migration channel,overpressure,accumulation conditions and structural inducement.Based on what mentioned above,the next exploration targets were analysed,which had make a good result in guiding exploration practice.