Research conclusions： (1) As there are three incoming tracks on each end of the station, the plane layout of the station should benefit easy incoming and outgoing, vertical untying, smooth operation and reducing crossing operation. (2) According to the track quantity, the track location and the predicted operation volume, the large marshalling station should be a bidirectional longitudinal tri-grade station as much as possible. The layouts of various fields and divisions and the operations in departure and arrival divisions should be balanced to reduce the crossing interference. (3) The new pattern of layout of marshalling station is presented. Namely, one end of the exchange track in exchange field connects with the hump and the other end connects with the other arrival field. In this case, the wagons can be pushed off to the exchange field and hauled to the arrival field after collecting in group for breaking up again. Compared with the traditional layout pattern of exchange field, by using this new pattern, the number of collecting and delivering wagons can be reduced, the operational interference between shunting field and departure field can be reduced and the operational efficiency and capacity can be enhanced.