Disclosed herein are a computer assistance method for the reduction of a fracture and a computing system for assisting the reduction of a fracture. The computer assistance method includes: generating a first model of a first bone, which is a treatment target, based on a pre-operative medical image； generating a second model, assumed to be obtained after the restoration of the first bone, based on the pre-operative medical image； acquiring a third model in which the spatial information of the first model has been updated by incorporating, into the spatial information, the movement of the first bone occurring during treatment after the installation of markers onto the first bone； and generating overlay visual information based on the second and third models registered onto the same space.
