Unmanned aerial vehicle surveying and mapping method and system for ancient building and storage medium

The invention relates to an unmanned aerial vehicle surveying and mapping method and system for an ancient building and a storage medium. A plurality of calibration stand columns are arranged in the peripheral direction of the ancient building, an unmanned aerial vehicle is used for flying between the adjacent calibration stand columns, and the method comprises the steps of obtaining first spacing distance information and second spacing distance information between the unmanned aerial vehicle and the adjacent calibration stand columns; acquiring current height information of the unmanned aerial vehicle; calculating current coordinate information of the unmanned aerial vehicle on a preset three-dimensional coordinate system according to the first spacing distance information, the second spacing distance information and the current height information; acquiring detection distance information between the outer surface of the ancient building facing the unmanned aerial vehicle and the unmanned aerial vehicle; cal