Abstract: Fractures can destroy and preserve oil and gas reservoirs. The buried hill reservoir of Shengli Chengdao Ordovician is controlled by fractures and has strong heterogeneity. In this paper, with seismic edge detection as prior information and heuristic factor, ant body tracking is carried out on adaptive seismic coherence data body to fine detect cracks, which makes up for the defect of low resolution of single coherence body detection, and obtains the fracture detection results with higher coincidence degree with drilling and actual underground conditions. It plays a guiding role in oil and gas exploration in this area.