International discourse has always been important for a government to elaborate on its governing ideas, policies, as well as political positions. Because of their rich and profound cultural implications, metaphors are often employed by the Chinese Ministry of Foreign Affairs in public speeches to get message across on the world stage. Rendering these metaphors into Japanese accurately constitutes a daunting task. Guided by the framework of the Eco-Translation Theory, the paper puts forward the Chinese-Japanese translation methods of metaphors from the linguistic, cultural and communicative perspective. Through an analysis of the metaphors in the column featuring the speeches in Japanese by Ministry of Foreign Affairs on People’s Daily Online in 2021, it is underscored that these three perspectives help retain faithfulness to the source text and the cultural flavor of the source culture, and accommodate the target readers, which in turn ensures the acceptance of the target text.