To meet the growing demand for mobile phone speakers and microphones,improve the production efficiency of mobile phone speakers and reduce the cost of integrated production,the speaker production line must be reformed,while the voice coil is the key part of speakers.Laser cutting instead of the original cutting mode achieves the cutting of voice coil line,and the most appropriate laser power is selected by analysis and calculation.The experiments are carried out.The results show that the laser cutting line can greatly increased the production efficiency and the cutting quality has been greatly improved.This study proves that the laser can be used in the voice coil cutting production line,and the effect is good.