讨论了如何使用分数傅里叶变换来产生分数泰伯效应，导出了要产生这种双重变换的光学条件，变换后的周期、变换比例因子和级联运算法则，并进行了实验验证。这种双重变换有助于光学系统的设计、分析和计算。最后给出了应用实例 This paper discusses how to use Fractional Fourier Transform to generate Fractional Talbot Effect, derives the optical conditions, transformation period, transformation scale factor and cascade algorithm to produce this double transformation, and verifies it by experiments. This dual transformation helps optical system design, analysis and calculation. Finally, the application example is given