With the rapid development of UAV technology and the continuous reduction of production costs, UAV is more and more widely used in military, surveying and mapping, agriculture, environmental protection and many other fields, and UAV has gradually begun to play an important role in the field of engineering construction. UAV can easily and accurately reach the construction site where manpower is difficult to reach, and can quickly, multi-angle, all-weather collection of construction site information, can not affect the on-site production, real-time acquisition of project progress, on-site quality and safety management, which is conducive to managers to timely discover the existing safety and quality hazards, combined with the corresponding control measures. It can effectively improve the management level of the construction site and realize information and fine management.