Abstract: Industrial robots generally suffer from common problems such as long lead times and complicated commissioning when developing new processes. Taking ABB IRB120 industrial robot as the research object, based on Process Simulate industrial simulation platform, adopted the method of physical fusion of industrial robot information, and realized the function of deep fusion of industrial robot solid and virtual model, the synchronized motion function of the two was achieved through data communication, acquisition and transmission, and the time delay error of the virtual model relative to the physical industrial robot was further analyzed. The analysis results show that time delay error of the two is within the industrial allowable range, shows that the technology can provide an effective solution for smart manufacturing, dramatically shorten process development cycles and reduce process development costs, technology is also a concrete engineering application of the digital twin concept and itself has high engineering promotion value.