The invention discloses a method for automatically controlling the railway route entry, which comprises the following steps: transmitting a shunting service instruction to analyzing equipment and a train terminal; transmitting an instruction to the analyzing control equipment to determine information after receiving the shunting service instruction by the train terminal; searching a higher preference path from a road map database according to the shunting service instruction after receiving the instruction determining information by the analyzing control equipment; and transmitting a control instruction to interlocking control equipment for opening a route entry according to the higher preference path. The invention also discloses a device for realizing the method, which comprises the train terminal, the analyzing control equipment and the interlocking control equipment. By the method and the device, the arrangement of artificial participation of train route entry can be canceled, the automatic arrangement of the higher preference path for route entry can be realized, the traffic capacity of railway can be improved and the labor productivity as well as the automatic level and the safe reliability of the railway can be improved.