The present disclosure relates to a data processing method for blueprint design, a product lifecycle management (PLM) widget and a computation device. The method comprises: receiving by a PLM widget a first acquisition request from a blueprint design program; in response to the first acquisition request, acquiring by the PLM widget a design check file corresponding to blueprint information of a current blueprint in the blueprint design program from a PLM program, the design check file being used to prompt a user to check design compliance of the current blueprint; and transmitting by the PLM widget the design check file to the blueprint design program.