In order to scientifically optimize the allocation of China"s aviation network resources and evaluate the importance of special airports, this paper uses complex network theory to construct a directed weighted network of Chinese urban aviation, and explores the characteristics of its network structure. The indicators are used to rank the importance of nodes to screen the important domestic airport nodes. The results show that the distribution of node degrees and edge weights of China"s urban aviation network is heterogeneous and is a scale-free network; the important airport nodes selected by different methods are basically the same, and the screening results provide effective opinions for the overall management and control of the network; ZWWW and ZYHB airports have a higher centrality of intermediary relative to other indicators and have an important transit role in the network.