Abstract: In the process of shale oil exploration and development, the prediction and evaluation of fractures are extremely important. The development of fractures can not only provide high-quality shale reservoirs, but also support the deployment design of horizontal wells. It is also of great significance for the later reservoir fracturing and the formation of network fractures. However, large-scale fractures or faults will cause difficulties in drilling construction, so it is necessary to avoid them when designing horizontal wells. In view of the different scales of fractures in Huazhuang area, combined with drilling data and regional geological background, the prediction of large-scale fractures in post-stack high-definition ants and small-scale fractures in pre-stack seismic azimuth anisotropy is carried out, and a set of multi-scale fracture prediction technology flow suitable for the study area is formed. Finally, the fracture development characteristics of the area are clarified through the fusion of different scales of fractures, which provides theoretical guidance for the development and deployment of shale oil horizontal wells.