The “Belt and Road” strategy is the most ambitious comprehensive regional economic cooperation strategy put forward up to date by the Chinese Government. In the process of planning, promoting and implementing this conception, the concept, practice and strategy of China’s economic diplomacy witnesses a new development. This article makes some observations on the “Belt and Road” conception mainly from the perspective of economic diplomacy, with focus on the new thinking, new mechanisms, new models and new policies of China’s economic diplomacy in the process of pushing forward the “Belt and Road” concept, and tries to understand its important challenges. These challenges contain new requirements on China’s economic and diplomatic ability, and need to be carefully addressed in the process of promoting the “Belt and Road” strategic concept. The “Belt and Road ” strategy is the most ambitious comprehensive regional economic cooperation strategy put forward up to date by the Chinese Government. In the process of planning, promoting and implementing this conception, the concept, practice and strategy of China’s economic diplomacy witnesses a new development. This article makes some observations on the “Belt and Road” conception mainly from the perspective of economic diplomacy, with focus on the new thinking, new mechanisms, new models and new policies of China’s economic diplomacy in the process of pushing forward the “Belt and Road ” concept, and tries to understand its important challenges. These challenges contain new requirements on China’s economic and diplomatic ability, and need to be carefully addressed in the process of promoting the “Belt and Road ”strategic concept.