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The green trade as one of the important content of green silk road construction, pays an important role in the extension of the green supply chain, guide the direction of the green investment and improve the green industry layout. Firstly, the green trade data of countries along the Silk Road from 2000 to 2019 are divided into four stages based on the ordered clustering method, and then the changes of regional status, intra-regional pattern and intra-regional competition and cooperation in global green trade in each stage are explored. The results show that :① From the perspective of global status and spatial structure, the global status of green trade of countries along the "sea line" has significantly increased from 2000 to 2019. The "multi-core" spatial structure of regional green trade is also becoming more and more obvious. Among them, Southeast Asia has been in the "core" echelon of the main position. ② From the perspective of the green trade structure between China and the countries along the "Silk Road", China's green trade deficit is unstable and in a long-term deficit state, and its external competitive advantage is increasing year by year, but it is still in a weak competitive advantage; However, the structure of green trade products between China and countries along the "Silk Road" is reasonable and highly complementary. [ABSTRACT FROM AUTHOR]