This paper theoretically explores the mechanism of the influence of opening China-Europe Railway Express on China's absorption of FDI, then applies the panel data of 128 countries from 2008-2017 in the PSM-DID model to prove a stimulative effect of opening the trains on China's FDI from the counties along the routes.Meanwhile, the levels of the countries' economic growth are proved to have a positive correlation with their FDI towards China.From this research, it is concluded that the opening of China-Europe Railway Express has brought mutual benefits leading to a win-win situation.Afterwards, policy recommendations are put forward in the aspects of management system, infrastructure improvement and so on.