Using 70 rail transit stations from the Third Ring Road to the Fourth Ring Road in Beijing as samples, this study analyzed the continuity of the walking space around the stations from two aspects: the integrity of the walking network at the macro level and the smoothness of the walking path at the micro level. The dominant problems and influencing factors were explored using satellite map observations, map marking, and field surveys. The results show that the overall degree of pedestrian networks around stations in the Beijing urban area is primarily affected by main roads, expressways, and viaducts, followed by rivers and railways. A small number of stations are affected by elevated rail transit lines, resulting in a failure to effectively integrate the ground and ground space around the entrance and exit. From the perspective of time and space barriers, environmental factors affecting the smoothness of pedestrian paths are mainly reflected in three aspects: the connectivity of crossing facilities, the time blocking effect of grade intersections, and the dual guidance of buildings (structures). To realize the pedestrian accessibility of subway passengers from the exit to the destination, this paper puts forth some suggestions on the construction of smooth and continuous walking space from the aspects of track line and site selection, station entrance and exit space design, space environment elements, and policy guidance.