This paper elaborates the steps of converting the engineering drawings directly generated from SolidWorks into AutoCAD standard ones, proposes a new conversion method, and achieves a rapid conversion with one key through the method of programming. By testing a large number of examples, it also summarizes the occurrence of abnormal state and the corresponding solution during the conversion. Compared with the conversion of existing methods, the proposed method has the features of accuracy, linear clearance, completeness, complete layers, and simplicity.