An alarm apparatus for a bus station is provided to form performance thereof by using a sensor part for sensing a contacting state between a button and a passenger. A bus alighting request button unit includes a sensor part(10) used as a button. The sensor part has a multiple button function to recognize a pushing state of the button on a broad area thereof. The bus alighting request button unit further includes an integrated control part(20) and a plurality of lamp parts(L1-L2). The integrated control part is used for recognizing an operation of the sensor part in order to control a driving operation of a lamp driver(30) and interrupt the driving operation of the lamp driver according to a signal of a door-opening sensor part(40). The lamp parts are installed in a predetermined interval in a bus.
