A new type of 12-pulse industrial rectification system based on induction filter technology is studied, and its advantages in harmonic suppression are analyzed by simulation. On the basis of expounding the filtering mechanism of induction filter technology, a new 12-pulse industrial rectification system simulation model of induction converter transformer and its filter unit is established by using the power system simulation module(PSB) in MATLAB/Simulink. Compared with the traditional 12-pulse rectifier system, the simulation results show that the THD of the network side is only 0.73% when the induction filter is used, the utility model can avoid the harmonic wave flowing into power network through transformer and reduce the loss of equipment and the influence of the harmonic wave on the power network.