This study aims to interpret the ecological meaning of discourse from system-functional linguistics perspective and analyses the ecological diplomacy ideas embedded in reporting, and to guide people to develop an ecological consciousness of living in harmony with nature through the analysis of ecological orientations. The study explores the ecological factors in the participant, process and environmental components. The results show that in terms of participant role distribution, material process participants and relational process participants account for the largest proportion. In terms of transitivity processes, the focus is on the use of material and relational processes. In terms of the distribution of circumstantial element, there are significant differences in the use of ecological discourse in coverage. The idea of ecological diplomacy is also implicitly reflected in the coverage.