With the continuous improvement of China’s international status, Chinese leaders often deliver speeches on some important international occasions. The English translation of diplomatic speech concerns the interests and honor of China, so the role of interpretation for diplomatic speech in this process is very important. Taking foreign minister’s speech at the plenary session of the Fourth Ministerial Meeting of China-CELAC Forum as the research object, this study analyzes the characteristics of the speech in three aspects: syntactic choice, choice for figure of speech and the use of metaphor from the perspective of interpretation text, and repeatedly compares it with the speeches of previous leaders, trying to summarize the overall style of diplomatic discourse, so as to provide reference translation strategies for interpreters’ real-time interpretation.