According　to　the　characteristics　of　fixture,　a　method　is　introduced　to　develop　a　modular　fixture　parts　library　by　using　visual　programming　language　VC　+　+,　qSolidWorks　API　interface　and　configuration　technology.　First　of　all,　the　modular　fixture　Library　has　been　established　through　the　configuration　technology　of　driving　parameters.　Secondly,　it　is　programmed　to　generate　a　pop-up　menu　and　SolidWorks　plug-ins　to　achieve　the　module　fixture　parts　call.　At　the　same　time,　management　and　utilization　of　the　modular　fixture　Library　is　completed,　providing　users　with　rapid　fixture　design　based　on　3D　modeling　environment,　and　contributing　to　the　promotion　and　application　of　CAD　technology　in　the　machine　tool　industry.