Abstract:The third International Forum on Industry-University-Research Cooperation between Countries along Chongqing and China-Europe Railway Express was successfully held in Chongqing Foreign Affairs Center on November 11,2023. More than 100 experts from China, Kazakhstan, Hungary, France, Poland and other countries attended the forum. Some results of China-Europe freight trains in the operation, international influence and the industry-university-research cooperation of countries along the Belt and Road was summarized, and the development experience was also summarized. Based on the challenges faced by freight trains, in order to improve the high-quality development of China-Europe freight trains, the participating experts put forward suggestions based on the latest research.