The polarization mechanism of leather was discussed in this paper. Using Bohr atom structure and Lorentz model, the polarizability of electron polarization and acting field of leather was studied; 研究了皮革材料在外场作用下的电子位移极化机理,利用波尔圆轨道模型和洛伦兹模型,分别研究了皮革材料的电子位移极化率和有效电场;