针对磁化强度的一致转动: Stoner-Wohlfarth 模型，在磁滞回线不能严格求解的现实情况下，我们获得了描述磁滞回线的特征量: 剩磁、矫顽力、饱和场的严格解. 依据磁化强度一致转动过程的分析，我们提出了剩磁、矫顽力、饱和场这 3 个特征量的确定条件，并得到以上磁性材料的技术磁化特征量与材料内禀参量饱和磁化强度和各向异性等效场的关系. 同时，我们利用磁滞回线在 3 个特殊角度下的严格解和一般情况下的数值解验证了以上特征量关系的正确性. 本研究结果对于判断磁性材料的磁化反磁化过程和深入理解一致转动过程具有重要参考意义.

This paper focuses on the Stoner-Wohlfarth model which describes a coherent rotation of magnetiza-tion. Characteristic quantities such as remanence，coercivity and saturation field，of hysteresis loop are obtained ex-actly even though the model cannot be solved generally. Based on the analysis of the coherent rotation of magnetiza-tion，we find not only the criterions to obtain the characteristic quantities but also derive the relationships between these technical magnetization quantities and intrinsic saturation magnetization as well as anisotropic effective field of magnetic materials. Further，we verify the correctness of the relationships by using the exact solutions of three spe-cial hysteresis loop and the numerical solutions of general case. These results are of important reference for the judg-ment of the magnetic reversal magnetization process and inside understanding of the coherent rotation of magnetic materials.