介绍了合肥同步辐射光源新注入系统中冲击磁铁的磁场和铁氧体磁芯设计，讨论了铁氧体材料的电磁特性，包括频谱特性、设计频率区域内的磁导率特性、损耗特性和稳定性等对冲击磁铁设计的影响。 The magnetic field and ferrite core design of impact magnet in new injection system of Hefei synchrotron radiation source were introduced. The electromagnetic characteristics of ferrite material were discussed, including the spectral characteristics, the permeability characteristics in the design frequency region, the loss characteristics and the stability The impact of sex on the impact of the magnet design.