A subway platform illumination device is disclosed that guides passengers to recognize the current situation by emitting light of different colors when the subway is entering the subway platform or the subway door is being opened. The lighting device for a subway platform includes an LED light source unit including a plurality of LEDs emitting light of different colors and a substrate on which the plurality of LEDs are mounted; And the LED light source unit emits the first color light and the second color light when the subway is entering the inside of the subway platform, And a controller for causing the LED light unit to emit light of the first color and light of the third color when the subway arrives at the subway platform and the subway door is open. Accordingly, light of different colors can be used to guide the entry or arrival of the subway in one configuration, and it can serve as a display panel for transmitting various types of information necessary for the platform. Further, even if the main light source is broken by providing the auxiliary light source, the operation of the main light source can be assisted by using the auxiliary light source.
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