Railway signal simulation test box

The invention discloses a railway signal simulation test box. The railway signal simulation test box comprises a test box body, and a front side wall of the top end of the test box body is provided with a track simulation disk with a light non-locking button. According to the railway signal simulation test box, compared with the prior art, the application range and versatility of the test box areimproved through the in-station simulation test box; a simulation test is completed by expanding and combining a plurality of simulation boxes to facilitate the expansion of the test boxes; the weightof the test box is reduced by reducing the number of external plugs, which is convenient to carry; on the power supply board, the signal light source is changed from AC220V to AC24, sent to a combination frame, and then sent to the simulation test box through the distribution panel to carry out the simulation test; and the current of a LED and the voltage across the LED are reduced to increase the life of a diode, thereby