The utility model relates to an automatic luggage and postal transportation system at a railway station, consisting of a ground house, a basement, line-crossing tunnels, line-following tunnels, a transportation belt, a vertical well and a lifter. A partition wall (10) is arranged between a luggage line-crossing channel (6) and a postal line-crossing channel (9) which are respectively communicated with the line-following tunnels thereof. As the luggage and postal business sent and received is transported by an underground passage and the lifter, the effective area of a platform occupied by a traditional luggage slope ramp is reduced, the intersection with passengers at the platform is avoided, the valid using area of the passenger platform is enlarged, the luggage and postal transportation distance is shortened, the transportation time is reduced, and the working efficiency is enhanced.