The traditional forging process is difficult to coordinate the synchronous optimization of the complex geometry and microstructure of the turbine disk, and it is urgent to realize the " forming-forming " integrated manufacturing through integrated forging technology. In this paper, GH4169 nickel alloy turbine disk is taken as an example, and the integrated simulation of the whole process of forging forming is realized by means of the integrated module in the finite element software. The multi-scale coupling mechanism of temperature field, strain field and microstructure is analyzed. The research shows that the integrated simulation of forgings considers the importance of each process in the forging forming process more comprehensively, and reveals the characteristics of forging forming under different processes. The integrated simulation method of die forgings provides a more accurate experimental and theoretical reference for optimizing the forming process of forgings.