Abstract:In the process of numerical modeling of tectonic and the palaeo-tectonic stress field,it is key problem to determine the stress magnitude as the boundary condition of model. The model construction process of Tazhong I# fracture zone in the center of Tarim basin,Xinjiang province,China,is taken as an example to show how to determine the palaeo-tectonic stresses of different beds with different tectonic movement ages. The tectonic geological model is successfully established by using Kaiser effect of the rock and testing result of dislocation in crystal lattice of conchite. The characteristics and resolution of the tectonic evolution are compensatively analyzed.