本文基于中国国内65个民航机场、333条航线，构建国内航空货运航线网络。通过搜集2016年上述航线国内航空货运运量，采用pajek软件对该货运航线网络结构进行分析，并对航线运载率进行研究。结果显示：我国货运航线网络具有小世界特征，边缘节点优先与大型枢纽城市节点建立连接；网络发展不均衡，拥有更多航线的城市节点运力也更高，导致大型城市枢纽节点负担过重；我国货运航线网络的运载率 整体偏低，特别是连接枢纽城市和东南沿海地区的航线。最后，提出调整航线网络结构与提高航空货运运载率的建议。本文研究有助于分析我国当前货运航线网络存在的问题，为货运网络结构优化与货邮资源配置提供依据。

Based on the 65 domestic civil airports and 333 domestic airlines , this paper builds a domestic air cargo network. By collecting the domestic air cargo transport volume in 2016, the author studies air crago network by applying the pajek,and the delivery efficiency of the airline. The results show that the air cargo network has the characteristics of small world, the edge nodes have the priority to connect with the large hub city nodes, the development of network is out-off-balance, and the node capacity of more routes is higher, which leads to the heavy burden of large city nodes, the delivery efficiency of the freight network in our country is low as a whole,in particular the routes connecting the hub nodes and the airline of the southeast coastal areas. The author puts forward the proposal to adjust the structure of air cargo network and increase the efficiency of air freight finally.It is argued that these conclusions can help to analyze the problems existing in current cargo network, and provide the basis for optimizing the structure of freight network and allocation of cargo resources.