本文研究了Ｈｅ－Ｎｅ激光照明多模光纤束产生的斑纹场特性，讨论了不同芯径光纤组成的多模光纤束产生的斑纹场之间的差别，并与毛玻璃斑纹场进行了比较，表明多模光纤束辐射的斑纹场可用于光学测量和信息处理。 In this paper, we study the speckle field characteristics of He-Ne laser-illuminated multimode fiber bundles, and discuss the differences between the speckle fields produced by multi-mode fiber bundles with different core diameters and compare them with the frosted glass fringes. The streaked field radiated by the fiber bundle can be used for optical measurement and information processing.