本文采用地震震级的模糊信息提出确定地震重现关系的一种方法。在分析中应用顶角法把传统的最小二乘法加以延伸来处理模糊地震震级。通过若干事例讨论与验证了地震重现关系中采用地震震级的清晰值与模糊值的差异。本文提出的模糊重现关系可用于地震危险性分析或地震区划。 In this paper, we use the fuzzy information of earthquake magnitude to propose a method to determine the relationship between earthquakes. In the analysis, the top-angle method is used to extend the traditional least-squares method to handle the magnitude of the fuzzy earthquake. The differences between the clear values ​​and the fuzzy values ​​of the earthquake magnitudes used in the seismic recurrence relationship are discussed and verified by several examples. The fuzzy recurrence relationship proposed in this paper can be used for earthquake risk analysis or seismic zoning.