To address the short distance transmission problem of ultraviolet communication for the power restriction with optical source device and the severe attenuation with atmospheric channel, an anti-interference relayed link method for ultraviolet non-line-of-sight communication is proposed. The relayed communication link is built in the transmission node from end point to end point by adopting multihop network mode structure, and the time division multiplexing technology is used to avoid possible interference from neighboring nodes distributed the different slots. At the same time, the power requirements of different communication styles both direct transmission information and relayed link retransmission information are analysed. The simulation analysis indicates that this method can decrease power for not only single node but also the system in the same transmission range, so the power utilization ratio is raised. Light weight nodes with low power consumption are shown to be feasible to implement and deploy.