The utility model relates to a transformer station safeguard device comprising stand pillars, a bottom beam, a sensor, a manual button, doors, transmission devices, a guide rail and hinge pins. The microwave radar sensor reacts to moving objects, so that the problem that a door is opened for a long time or opened mistakenly because of an object placed in a sensing area is solved; with the manual button, the door can be opened and closed normally even when the microwave radar sensor breaks down; a driving door and a driven door of each door are connected through hinges, so that the doors are in a folded state when being opened and are suitable for the places where entrances of transformer rooms are relatively narrow; and each transmission device is a linkage device formed by a driving electric device and a driven electric device, so that the opening and closing of the doors are more reliable. The transformer station safeguard device is simple in structure and convenient to use and is of high practical value and promotional value.