Abstract: Because of the working requirement of induction cell and efficient application of magnetic core, the magnetic core must be reset before the induction cell works. Reset can maximize the utilization of magnetic cores, reduce magnetic material consumption, and reduce the volume and cost of equipment. In this paper, the properties of magnetic materials are studied and analyzed. It is found that compared with the pulsed reset method, the direct current reset method has many advantages, such as low voltage, low current, little electrode erosion and low cost. According to the different import position of reset current, two direct current reset methods have been designed. Based on the theoretical analysis and numerical results, the implementation plans have been formulated.