A flip-over assembly for automatic hat-making production line equipment includes an installation seat, a flip-over component, two groups of driving components, a translation component, and an angle adjustment component. The flip-over component is correspondingly installed at a top end of the installation seat. The two groups of driving components are matchingly installed on both side walls of the installation seat. Output ends of the driving components are in a transmission connection with the flip-over component. The angle adjustment component is installed on a lower surface of the installation seat. The translation component is matchingly installed on a lower surface of the angle adjustment component. The flip-over assembly can collect cloth using a left side plate and a right side plate, and can clamp and open the cloth and perform double-needle sewing on the cloth and subsequent cloth opening, which can be controlled by the operator.