Preparation method and device of digital steel bracket

The invention discloses a digital steel bracket preparation method and device, and the method comprises the following steps: scanning a tooth impression, obtaining the three-dimensional data of the tooth impression, and generating a three-dimensional virtual oral cavity model; according to the three-dimensional virtual oral cavity model, screening in a steel bracket database according to condition parameters, and matching to obtain a corresponding preset steel bracket digital model; editing a preset steel bracket digital model and the three-dimensional virtual oral cavity model to form a steel bracket digital model and an oral cavity digital model, the steel bracket digital model being matched with the oral cavity digital model; respectively printing a steel bracket digital model and an oral cavity digital model in a 3D printing mode to obtain a steel bracket real object and an oral cavity real object; and placing the steel bracket real object on the oral cavity model real object, and debugging and resetting