A　large-scale　manufacturing　workshop　includes　a　wide　variety　and　a　large　amount　of　equipment.　When　equipment　is　mapped　as　a　digital　twin　(DT)　model,　the　DT　model　has　complex　and　implicit　or　non-hierarchical　relationships,　which　makes　the　development　of　a　DT　workshop　system　(DTWS)　for　a　manufacturing　plant　challenging.　To　address　this　problem,　this　paper　proposes　a　rapid　construction　method　of　equipment　model　(RCMEM)　for　a　discrete　manufacturing　DT　workshop　system,　which　can　meet　the　requirements　of　complex　manufacturing　business　scenarios,　improve　the　efficiency　and　quality　of　the　DT　model　construction　at　the　equipment　level,　and　form　an　efficient　equipment　model　construction　method.　First,　a　DT　object　(DTO),　which　represents　a　basic　unit　of　the　DT　model,　is　defined.　The　DTO　is　used　to　derive　the　DT　model　at　the　equipment　level.　The　DTO　collects　and　wraps　generalization-capable　functions　from　equipment　into　components,　and　geometric,　functional,　and　communicative　descriptions　are　combined　into　a　single　model.　The　DT　model　can　increase　the　scalability,　reusability,　and　modeling　quality　by　reusing　the　DTO　capabilities.　Further,　a　general　construction　process　of　the　DTO　model　of　multi-axis　computer　numerical　control　(CNC)　machines　is　presented.　This　process　standardizes　the　common　capabilities　of　the　equipment　models　and　minimizes　the　construction　time　of　machines＇　DT　models.　Furthermore,　a　rapid　mounting　and　communication　configuration　mechanism　(RMCCM)　is　proposed.　This　mechanism　enables　fast　DTO　network　communication　and　improves　interoperability　in　a　multi-source　data　environment.　This　paper　also　proposes　a　DTWorks　Software　development　kit,　which　can　help　developers　to　build　digital　factory　standalone　applications.　The　RCMEM　is　implemented　into　the　DTWorks.　Finally,　a　real　DTWS　case　is　used　to　examine　the　differences　in　equipment　model　building　before　and　after　the　application　of　the　RCMEM.　The　results　demonstrate　the　good　effectiveness　of　the　RCMEM　in　complex　business　settings.