Openness is the basic connotation of “the Belt and Road”. However, China’s inland provinces do not have the conditions for direct import and export logistics, and their traditional international logistics mainly rely on coastal ports. Based on the actual data of inland ports and nodes along “the Belt and Road”, this paper constructs an index evaluation system for the logistics connectivity between 16 inland provinces and nodes along “the Belt and Road” by using complex network theory from the perspective of the directional connection between inland ports and seaports and the connection relationship established by the China Railway Express. This paper analyzes the international logistics connectivity of inland provinces and its influencing factors from the dimensions of accessibility and importance. The results show that the connectivity of inland provinces in “the Belt and Road” international logistics network is not strong, but this connectivity can be improved by strengthening the cooperation between inland ports and seaports and increasing the number of China Railway Express lines.