The invention discloses a method and equipment for displaying large-scale three-dimensional reconstruction scenes in real time. The method comprises the following steps of: taking a point cloud model or triangular mesh model of a large-scale three-dimensional reconstruction scene as input data; constructing multilayer detail model data of the three-dimensional scene through forked tree processing; and reading corresponding model data by a processor of the equipment to be processed according to the method, and outputting the processing result to a display interface in real time to be displayed. According to the method, data is processed through a forked tree, the processing speed is at an index level, so that the limits of computer memories can be overcome, the point cloud or triangular mesh-based large-scale three-dimensional reconstruction scenes can be displayed in real time, and a favorable interaction function is provided. The method and the equipment are not limited to three-dimensionally reconstructed scene models, are also suitable for the other three-dimensional point cloud or triangular mesh models with large data volumes, and have strong theoretical significance and broad application prospect.