Abstract: High silicon electrical steel has excellent magnetic properties and outstanding noise reduction effect, and it is an ideal soft magnetic material. However, high silicon electrical steel has the characteristics of being hard and brittle at room temperature, with almost zero plasticity, which makes it difficult to process for thin strip products of high silicon electrical steel. On the basis of introducing the properties of high silicon electrical steel, the research status of four plasticizing methods for high silicon electrical steel was summarized, including alloying, heat treatment, deformation treatment, and grain orientation control in China and foreign countries. The effects and shortcomings of various plasticizing methods were analyzed, and the future research directions of plasticizing methods for high silicon electrical steel were proposed.