The Kendo-Chengdao structural belt is an important hydrocarbon-bearing belt in the northeast of the Jiyang depression. The formation mechanism of individual fault was determined through analyzing Paleogene stress field characteristics and fault activity features，thus the reasons for the formation of uplifts and their relationship were clarified. The results show that three series of pre-Cenozoic basement faults developed striking NW，NEE and NNE respectively in the area.The first two are thrust faults generating at middle Triassic-Indo during pre-continent deformation，while the last one is the strike-left-slip fault accompanying with Tan-Lu Fault System translation at the late Jurassic. During the regional tension in south and north at Paleogene in the area，the basement faults striking NW moved again in left-tensional-shear，while the basement fault striking NNE moved again in right-tensional-shear. To the Cenozoic，the new generating faults striking nearly WE developed under the force of tensile stress in the south and north. The uplifts are characterized by tension-torsional half horst structure resulted from multiple activities of multi-faceted fault，which constitute together a composite Kendong-Chengdao structural belt.