A novel multifunctional prefabricated substation comprises a prefabricated substation body, a cooling fan, a partition plate, a short message module, a
smoke detection circuit, a detection circuit and a
temperature control circuit. The multiple sets of partition plates are installed at the rear end, the left end and the right end in the box body respectively to form a high-
voltage switch equipment chamber, a low-
voltage power distribution equipment chamber and a
transformer chamber, and the space among the
transformer chamber, the high-
voltage power distribution equipment chamber and the low-voltage power distribution equipment chamber serves as a maintenance channel. The detection circuit is matched with a plurality of micro
stroke power switches with handles; the plurality of
stroke power switches are respectively arranged at the lower ends of the outer sides of the plurality of partition plates; and the
smoke detection circuit, the short message module, the detection circuit and the
temperature control circuit are arranged in the
electric control box and are electrically connected. The whole device is relatively compact, convenience is brought to follow-up maintenance, the probability of
electric shock of workers during maintenance is reduced, short messages can be automatically pushed to managers when a fire disaster occurs, and a detection circuit can automatically switch on a cooling fan to work when the temperature in the box body exceeds the standard.