The blade forming machine for fire damper machine adopts PLC control, LCD touch screen, human-computer interface. Realize the interaction between human and Panasonic PLC. The operator can automatically run (programmable control) and monitor the control process through the set program, so as to realize the operator to control the production line and modify the control parameters, and monitor the equipment operation status, operation parameters and fault indication in real time. The length of the work piece can be adjusted.