The technology of radial well fracturing has been applied in various oil fields and achieved effective output. However, the influence that the hole of radial well on fractures should be studied further. In this paper, based on fluid-solid coupling equation, the factors that different parameters of radial well on crustal stress were solved nonlinearly by using ABAQUS. Initial fracturing position and propagation morphology were identified according to maximum tension-stress criterion and maximum energy release rate fracture criterion. In the end, results obtained from 3D physical experiment in the laboratory were used to verify the accuracy of simulation to a certain degree. The conclusions stated that original crustal stress field distribution was changed during the radial well fracturing and the induced stress field is established along the radial well at the same time. The propagation of major fracture is orientated by the induced stress in a certain area. The distance of orientated fracture is able to 40 meters. The increase of horizontal stress difference and reservoir thickness is unfavorable to effect of orientated propagation of fracture. The results are significant to the practice and production.