Abstract:To solve the lack of Creo accuracy information of inquiring and signing, Creo secondary development tool Creo/TOOLKIT was used to develop a dimensional accuracy information inquiring and signing module. Based on new generation of GPS standard system, the module was seamlessly integrated with Creo system, achieving dimensional accuracy information automatic extraction, inquiry and 3D annotation. The support of Creo for MBD technology was perfected and the design efficiency was improved.