The invention relates to the technical field of digital supervision, in particular to a digital supervision method and
system for a power construction project, and the method comprises the following steps: collecting a surface three-dimensional coordinate point clustering calculation component
point cloud cluster, extracting an actual measurement central axis through employing a random sampling consistency
algorithm, comparing a design axis net coordinate, calculating an axis net deviation value, and calculating the
point cloud cluster. And constructing an axis network topological
structure chart, traversing and comparing deviation values, analyzing and marking a primary deviation source, and performing recursive calculation to judge a deviation conduction path. According to the method, three-dimensional coordinate point clusters are collected, actual measurement central axes of components are calculated to restore geometric morphology, a space translation vector and a
rotation matrix are calculated by comparing with a designed axis net, an objective deviation value is quantified, manual subjectivity is eliminated, meanwhile, an axis net topological
structure diagram is constructed through component connection, and recursive calculation is carried out in combination with the deviation value, so that the precision of the axis net topological
structure diagram is improved. A deviation source is effectively analyzed and marked, a deviation conduction path is judged, and closed-loop management from deviation discovery to source diagnosis is achieved.