The utility model discloses a frequency conversion control system that is used for copper pipe production equipment oil smoke processing apparatus, include: one sets up the pneumatic control valve on a plurality of and a plurality of copper pipe production equipment that the pipeline was handled to oil smoke processing apparatus's oil smoke are the lateral conduit that the one -to -one concerns respectively, install on each copper pipe production equipment and the starting switch of corresponding pneumatic control valve connection with it, a converter that is used for controlling oil smoke processing apparatus's driving motor running frequency of being connected with oil smoke processing apparatus's driving motor, and the PLC controller, the PLC controller is connected with each starting switch and converter respectively. The utility model discloses utilize the PLC controller to gather each starting switch's start signal, pass through converter control oil smoke processing apparatus's driving motor's running frequency then according to this start signal, just so can adjust oil smoke processing apparatus's driving motor's operating power according to the operating condition of copper pipe production equipment, saved the electric energy effectively.