CAD drawing output method and device and computer readable storage medium

The embodiment of the invention discloses a CAD drawing output method and device and a computer readable storage medium, and the method comprises the steps: obtaining a profile map of each type of component according to a profile map processing rule corresponding to each type of component; according to the types and the size specifications of the components, recombining all profile maps corresponding to the components of each type, and establishing a template library; wherein at least one component template corresponding to each type of component is arranged in the template library; for all to-be-plotted components contained in one BIM model, whether a target template matched with the to-be-plotted components exists in a template library or not can be judged; and if yes, outputting the target template as a sub-element of the CAD drawing. According to the technical scheme, standardized management of CAD drawing output is achieved by depending on a pre-established template library, the CAD drawing output qualit