Three-dimensional point cloud collection system and model self-correction method of ancient building

In order to solve deficiencies of the prior art, the invention provides a three-dimensional point cloud collection system and a model self-correction method of an ancient building. The three-dimensional model self-correction method of the ancient building includes the following steps: S1, carrying out three-dimensional point cloud scanning on the ancient building; S2, judging whether ancient building scanning information is continuous; and S3, judging whether a non-continuous area of the scanning information needs to be corrected, and generating a correction preview for points which needs to be corrected therein. The invention also provides a three-dimensional point cloud scanning system of the ancient building. The three-dimensional point cloud scanning system of the ancient building includes a point cloud scanning end and a data processing end. The point cloud scanning end includes more than two scanning base points around the to-be-scanned building. The scanning information obtained by scanning of the poin