Abstract. Information dissemination of agricultural safety emergencies on the Internet has drawn wide attention of academia and industry. Topological properties of information dissemination network of agricultural safety emergency on the news websites based on complex network theory, such as degree distribution, diameter, average path length, centrality and betweenness centrality of network, is studied in this paper. The result shows that the information dissemination network of agricultural safety emergency on the news websites presents small world feature, which means the dissemination network has relative small average path length and high betweenness centrality.