This paper presents a novel intelligent fiber-optic video surveillance system based on voice-leading, namely take the
fiber grating as a trigger leading to intelligently dispatch the video camera (active or dormancy). And to simultaneously
receive the video signal and leading signal under a single receiver, make full use of the power difference between the
two signals. The proposed method is validated through the experimental system. Experimental results show that the
system is error-free for a 30 km transmission.