Manufacturing digital transformation and standard digital transformation are important parts of the national strategic goals in 2035. Intelligent manufacturing and digital standardization are closely related, thus doing research on their integrated application is conducive to their close combination and in-depth development, and to the digital transformation of manufacturing and standardization organizations. In this paper, a general model combining theory and application for integrating intelligent manufacturing and digital standard are proposed for the first time. More precisely, the model supplies architecture, functional specifications, technical system, implementation strategy and implementation process of intelligent manufacturing and digital standard. The feasibility of the general model is proved by using the concept verification of the digital twin model for the intelligent equipment manufacturing of power transformer. Furthermore, this paper can not only guide the research of electric power equipment manufacturing and standard digitization for power equipment, but also has reference value for standardization of intelligent manufacturing and standard digitization in other industries.