In order to further improve the information transmission quality and network performance of the wireless ultraviolet optical communication network, this paper proposes a novel wireless ultraviolet light cooperative communication network. The network nodes adopt the decoding and forwarding mode, and set the priority of each node, so as to realize the real-time forwarding cooperation strategy of network nodes. The paper simulates and analyzes the normalized throughput, average latency of each node of the new wireless ultraviolet light communication network with or without cache setting, and with or without cooperation. The simulation results show that when there is no cache setting, with the increase of the success rate of data frame transmission, the high-priority nodes always have higher normalized throughput, while the low-priority nodes lose data frames and the normalized throughput decreases. When cache is set, the normalized throughput of each node increases with the increase of cache. Compared with non-cooperation, cooperative ultraviolet light communication network has higher node normalized throughput and average latency.