In view of such problems as imbalance

instability and inaccuracy of structural division existing in the operation of the current Weighted Clustering Algorithms（WCA）in ultraviolet communication networking

this paper proposes an improved WCA.This algorithm is based on the rational number of cell division determined by an energy loss model and calculates the communication connection time with the relative inter-node mobility considered in the power change factors.The simulation and analysis show that the proposed algorithm improves the network stability

enables the selection of the central node to be more balanced

thus further improving the performance of ultraviolet communication networks.