Abstract: A data noise reduction method and apparatus are provided. In some embodiments, the method includes: obtaining to-be-processed point cloud data; for each of points in the to-be-processed point cloud data, determining a point feature corresponding to the point, the point feature comprising at least one of a spatial distribution difference feature between the point and other points adjacent to the point or a point group distribution feature corresponding to a point group comprising all points in a local space in which the point is located; recognizing a noise point from the to-be-processed point cloud data according to point features corresponding to the points in the to-be-processed point cloud data; and performing noise reduction on the to-be-processed point cloud data according to the recognized noise point.