The invention discloses a digital twinning virtual inspection method for a cement factory. The method comprises the following steps: 1, 3D modeling; 2, construction of an operation and maintenance system; 3, interface development; 4, data processing; 5, data association; 6, drawing an inspection route; 7, data binding; 8, starting inspection; and 9, generating a report. According to the invention, by introducing an informatization means, the inspection work which depends on experience and is difficult to supervise originally is standardized and digitalized; according to the invention, a virtual inspection means is introduced, the whole inspection process is simulated through virtual figures and scenes, the inspection workload is reduced, system data of a monitoring system, an energy management system, a monitoring system and the like are summarized in inspection dimensions, and the inspection accuracy is ensured; in the manual inspection process, RFID positioning, Bluetooth sensor reading and other informatization means are introduced to supervise the inspection condition and quality; according to the invention, the inspection personnel can follow the virtual person to carry out online inspection, and unmanned or few-person field inspection is realized.