提出了一种基于自动对焦方法的光锥与CCD耦合系统，并采用算子融合技术，给出了一种新的基于空域分析的像质评价函数．经实验证明，本文提出的方法既有效地提高了算法的可靠性，又实现了较高的对焦准确度，较好地解决了在耦合过程中实现光锥与CCD最佳耦合效率的问题．

In this paper,an auto-focusing method is introduced to the system for coupling optical fiber-taper with CCD,a new image-evaluation function which based on the operator fusion technique is also proposed. By experiments,it is proved that the reliability of auto-focusing is enhanced,and a higher accuracy is achieved. This method successfully resolves the problem how to obtain the best efficiency of coupling during the coupling process.