The invention relates to a method for automatically drawing a railway station signal plane layout diagram, which comprises the following steps: acquiring professional basic data of a station yard to form a station track information table, a turnout information table, a train bumper information table and a station information table; sorting to obtain an inbound annunciator table, an outbound annunciator table, a shunting annunciator table and an insulating section table; reading database information, and calculating turnout junction point coordinates, pull-in annunciator coordinates, pull-out annunciator coordinates, shunting annunciator coordinates and insulation joint coordinates; compiling station type data; and drawing a station signal plane arrangement diagram, including drawing a station track, drawing a turnout and drawing signal equipment. According to the invention, data is automatically drawn, and informatization and integration of a railway station signal plane layout diagramare achieved; a database technology is used, so modification is convenient; when design is changed, only data content needs to be modified, then automatic generation of a signal platform diagram canbe achieved; data can be used for a double-line diagram and an optical cable path diagram at the same time, so one-position modification and multi-position linkage can be achieved, and design intellectualization is achieved.