Aiming at the ecological comprehensive management of 51101 working face of Guojiawan coal mine, the UAV equipped with a five-lens tilt camera is used to obtain aerial photographic images, and after internal processing and 3D modeling, the real 3D model is obtained. By analyzing the precision of the image control points and 3D model, it proves that the UAV inclined photogrammetry fully meets the mapping requirements of large-scale topographic map for coal mine management. Relying on the real-life 3D model and the generated high-precision DLG data results, it effectively helps designers accurately and efficiently put forward the corresponding ecological management method of the mining collapse area, greatly improves the pertinence and efficiency of the collapse management and land reclamation work, and provides accurate and trustworthy technical support and results verification for the later acceptance of the project, and ultimately effectively solves the problems of surface deformation and ecological damage in the management area, which has good social significance, and also provides effective reference for the future mining treatment of coal mine subsidence area.