Feedback control refers to the process where, after a certain action and task is completed, the actual results are compared, thereby influencing the next action and playing a controlling role. Its characteristics are: it can promptly respond to the objective effects caused by each step of the planned decision during the implementation process, and accordingly adjust and modify the next implementation plan, so that the implementation of the planned decision can be coordinated with the original plan in a dynamic manner. Of course, feedback control mainly refers to the feedback of consequences, while established facts are difficult to change, and replacing the old plan with a new one or the original decision with a new one requires a certain period of time. Due to the system’s inability to adapt to changes in circumstances, it will bring unnecessary losses to the work. This is where feedback control falls short compared to pre-control.