Abstract: Aiming at extraction of AutoCAD drawing schedule and interface problem of information management system,the structure characteristics of schedule were analyzed in detail,and the recognition and extraction method of schedule was put forward based on coordinate positioning.The steps of the method included:building selection set,structure identification of schedule,character recognition,the storage of virtual schedule,data output,etc.With the VB as the development platform,the recognition and extraction software of AutoCAD schedule was developed.The software didn't have any specific format limit of engineering drawing schedule,and it had strong flexibility and adaptability.Currently,the software runs well.

Key words: AutoCAD drawing, recognition and extraction of schedule, coordinate positioning, system integration