Zigui fold belt is located in the congruent part of Dabashan and Xuefengshan thrust belt,which is dome and basin,and is the result of the tectonic compounding and combination.Because Zigui fold belt recorded the important imformation reflecting the interaction of Dabashan and Xuefengshan thrust belt, it is the ideal site of studying on the compounding and combination process.This paper has a field research on Zigui sycline, Badong synclinorium and Xianglongshan anticline in Zigui fold belt, whose hinge of fold, fold related fault and joints are been structural analysis in detail,then we determine the superposition relation among them.Based on those, we distinguished different deformation through matching by stages, then reconstruct the paleo stress field during deformation stage.The result shows that Zigui fold belt experienced three stage deformation during J 3 K 1 : D 1 is that the Zigui sycline and Xianglongshan anticline was nearly EW.Zigui sycline was extensive round with the nearly upright axe and Xianglongshan anticlne was box with the upright axe.The related thrust fault was characteristic by thrusting from north to south.Those features may be related to Dabashan thrusting from NE to SW.D 2 is that Zigui sycline was superposition with hinge of nearly SN,then the sycline showed like a pan and the Wulong anticline developed in the east of Xianglongshan anticline.The fold belt was dome and basin.The Shuitianba fault related with Zigui sycline thrusted to SEE.The major stress field was parallel bunchiness.And the deformation may be related with the Xuefengshan thrust belt whcih was barriered by Huangling anticline when thrusting to NW.D 3 is that the nearly SN hinge of Zigui sycline bent to SW,and Badong synclinorium was arc been convex to NW,and the western segment of the Xianglongshan anticline was superposition by the structural features.The major stress field was generally divergent to NW.This deformation may be connected with that Xuefengshan thrusted to NW.Those sructural analysises show that Dabashan belt thrusting to NW firstly influenced the western Hubei,then Xuefenshan belt thrusted and broached to NW extended the region,that was a compounding relation.By analysis of the regional tectonic and stratum trelationship,we could have a conclusion that the deformaion D 1 D 3 deformed during J 3 to K 1 .As a result, Zigui fold belt which is prduct by compounding superposition with the Dabashan thrust belt thrusting to SW and Xuefengshan thrust belt to NW, that shows upper Yangzi region experienced compounding superposition process by stages during J 3 to K 1 , that is, upper Yangzi region was sujected to nearly SN tectonic process by Dabashan thrust belt precviously, then suffered from NW SE structural compounding superposition by Xuefengshan thrust NW